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authorDimitry Andric <dim@FreeBSD.org>2014-11-06 22:49:13 +0000
committerDimitry Andric <dim@FreeBSD.org>2014-11-06 22:49:13 +0000
commit8ef50bf3d1c287b5013c3168de77a462dfce3495 (patch)
tree3467f3372c1195b1546172d89af2205a50b1866d /lib/sanitizer_common
parent11023dc647fd8f41418da90d59db138400d0f334 (diff)
downloadsrc-8ef50bf3d1c287b5013c3168de77a462dfce3495.tar.gz
src-8ef50bf3d1c287b5013c3168de77a462dfce3495.zip
Import compiler-rt release_34 branch r197381.vendor/compiler-rt/compiler-rt-r197381
Notes
Notes: svn path=/vendor/compiler-rt/dist/; revision=274201 svn path=/vendor/compiler-rt/compiler-rt-r197381/; revision=274202; tag=vendor/compiler-rt/compiler-rt-r197381
Diffstat (limited to 'lib/sanitizer_common')
-rw-r--r--lib/sanitizer_common/CMakeLists.txt51
-rw-r--r--lib/sanitizer_common/sanitizer_allocator.cc105
-rw-r--r--lib/sanitizer_common/sanitizer_allocator.h164
-rw-r--r--lib/sanitizer_common/sanitizer_allocator_internal.h64
-rw-r--r--lib/sanitizer_common/sanitizer_atomic_clang.h15
-rw-r--r--lib/sanitizer_common/sanitizer_common.cc176
-rw-r--r--lib/sanitizer_common/sanitizer_common.h146
-rw-r--r--lib/sanitizer_common/sanitizer_common_interceptors.inc2332
-rwxr-xr-xlib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc568
-rw-r--r--lib/sanitizer_common/sanitizer_common_interceptors_scanf.inc4
-rw-r--r--lib/sanitizer_common/sanitizer_common_libcdep.cc16
-rw-r--r--lib/sanitizer_common/sanitizer_common_syscalls.inc2723
-rw-r--r--lib/sanitizer_common/sanitizer_coverage.cc113
-rw-r--r--lib/sanitizer_common/sanitizer_flags.cc35
-rw-r--r--lib/sanitizer_common/sanitizer_flags.h24
-rw-r--r--lib/sanitizer_common/sanitizer_internal_defs.h60
-rw-r--r--lib/sanitizer_common/sanitizer_libc.cc11
-rw-r--r--lib/sanitizer_common/sanitizer_libc.h1
-rw-r--r--lib/sanitizer_common/sanitizer_libignore.cc105
-rw-r--r--lib/sanitizer_common/sanitizer_libignore.h84
-rw-r--r--lib/sanitizer_common/sanitizer_linux.cc261
-rw-r--r--lib/sanitizer_common/sanitizer_linux.h27
-rw-r--r--lib/sanitizer_common/sanitizer_linux_libcdep.cc151
-rw-r--r--lib/sanitizer_common/sanitizer_mac.cc49
-rw-r--r--lib/sanitizer_common/sanitizer_mutex.h4
-rw-r--r--lib/sanitizer_common/sanitizer_placement_new.h10
-rw-r--r--lib/sanitizer_common/sanitizer_platform.h7
-rw-r--r--lib/sanitizer_common/sanitizer_platform_interceptors.h95
-rw-r--r--lib/sanitizer_common/sanitizer_platform_limits_linux.cc95
-rw-r--r--lib/sanitizer_common/sanitizer_platform_limits_posix.cc924
-rw-r--r--lib/sanitizer_common/sanitizer_platform_limits_posix.h920
-rw-r--r--lib/sanitizer_common/sanitizer_posix.cc89
-rw-r--r--lib/sanitizer_common/sanitizer_posix_libcdep.cc22
-rw-r--r--lib/sanitizer_common/sanitizer_printf.cc98
-rw-r--r--lib/sanitizer_common/sanitizer_procmaps.h15
-rw-r--r--lib/sanitizer_common/sanitizer_quarantine.h13
-rw-r--r--lib/sanitizer_common/sanitizer_report_decorator.h2
-rw-r--r--lib/sanitizer_common/sanitizer_stackdepot.cc34
-rw-r--r--lib/sanitizer_common/sanitizer_stackdepot.h26
-rw-r--r--lib/sanitizer_common/sanitizer_stacktrace.cc204
-rw-r--r--lib/sanitizer_common/sanitizer_stacktrace.h58
-rw-r--r--lib/sanitizer_common/sanitizer_stacktrace_libcdep.cc28
-rw-r--r--lib/sanitizer_common/sanitizer_stoptheworld.h2
-rw-r--r--lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc216
-rw-r--r--lib/sanitizer_common/sanitizer_suppressions.cc153
-rw-r--r--lib/sanitizer_common/sanitizer_suppressions.h61
-rw-r--r--lib/sanitizer_common/sanitizer_symbolizer.cc63
-rw-r--r--lib/sanitizer_common/sanitizer_symbolizer.h149
-rw-r--r--lib/sanitizer_common/sanitizer_symbolizer_itanium.cc44
-rw-r--r--lib/sanitizer_common/sanitizer_symbolizer_libcdep.cc446
-rw-r--r--lib/sanitizer_common/sanitizer_symbolizer_linux_libcdep.cc227
-rw-r--r--lib/sanitizer_common/sanitizer_symbolizer_mac.cc40
-rw-r--r--lib/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc601
-rw-r--r--lib/sanitizer_common/sanitizer_symbolizer_win.cc21
-rw-r--r--lib/sanitizer_common/sanitizer_syscall_linux_x86_64.inc16
-rw-r--r--lib/sanitizer_common/sanitizer_thread_registry.cc14
-rw-r--r--lib/sanitizer_common/sanitizer_thread_registry.h1
-rw-r--r--lib/sanitizer_common/sanitizer_win.cc71
-rwxr-xr-xlib/sanitizer_common/scripts/check_lint.sh97
-rwxr-xr-xlib/sanitizer_common/scripts/cpplint.py4024
-rwxr-xr-xlib/sanitizer_common/scripts/gen_dynamic_list.py85
-rwxr-xr-xlib/sanitizer_common/scripts/sancov.py56
-rw-r--r--lib/sanitizer_common/tests/CMakeLists.txt30
-rw-r--r--lib/sanitizer_common/tests/lit.cfg28
-rw-r--r--lib/sanitizer_common/tests/lit.site.cfg.in20
-rw-r--r--lib/sanitizer_common/tests/sanitizer_allocator_test.cc91
-rw-r--r--lib/sanitizer_common/tests/sanitizer_common_test.cc102
-rw-r--r--lib/sanitizer_common/tests/sanitizer_ioctl_test.cc77
-rw-r--r--lib/sanitizer_common/tests/sanitizer_libc_test.cc7
-rw-r--r--lib/sanitizer_common/tests/sanitizer_linux_test.cc37
-rw-r--r--lib/sanitizer_common/tests/sanitizer_mutex_test.cc1
-rw-r--r--lib/sanitizer_common/tests/sanitizer_nolibc_test.cc31
-rw-r--r--lib/sanitizer_common/tests/sanitizer_nolibc_test_main.cc19
-rw-r--r--lib/sanitizer_common/tests/sanitizer_posix_test.cc62
-rw-r--r--lib/sanitizer_common/tests/sanitizer_printf_test.cc32
-rw-r--r--lib/sanitizer_common/tests/sanitizer_procmaps_test.cc30
-rw-r--r--lib/sanitizer_common/tests/sanitizer_scanf_interceptor_test.cc2
-rw-r--r--lib/sanitizer_common/tests/sanitizer_stackdepot_test.cc23
-rw-r--r--lib/sanitizer_common/tests/sanitizer_stacktrace_test.cc31
-rw-r--r--lib/sanitizer_common/tests/sanitizer_stoptheworld_test.cc4
-rw-r--r--lib/sanitizer_common/tests/sanitizer_suppressions_test.cc152
-rw-r--r--lib/sanitizer_common/tests/sanitizer_test_main.cc3
-rw-r--r--lib/sanitizer_common/tests/sanitizer_test_utils.h8
-rw-r--r--lib/sanitizer_common/tests/sanitizer_thread_registry_test.cc3
84 files changed, 15202 insertions, 1907 deletions
diff --git a/lib/sanitizer_common/CMakeLists.txt b/lib/sanitizer_common/CMakeLists.txt
index 2683a37a32ca..84c1e67dc806 100644
--- a/lib/sanitizer_common/CMakeLists.txt
+++ b/lib/sanitizer_common/CMakeLists.txt
@@ -4,47 +4,52 @@
set(SANITIZER_SOURCES
sanitizer_allocator.cc
sanitizer_common.cc
+ sanitizer_coverage.cc
sanitizer_flags.cc
sanitizer_libc.cc
+ sanitizer_libignore.cc
sanitizer_linux.cc
sanitizer_mac.cc
+ sanitizer_platform_limits_linux.cc
sanitizer_platform_limits_posix.cc
sanitizer_posix.cc
sanitizer_printf.cc
sanitizer_stackdepot.cc
sanitizer_stacktrace.cc
- sanitizer_symbolizer_itanium.cc
- sanitizer_symbolizer_mac.cc
+ sanitizer_suppressions.cc
+ sanitizer_symbolizer.cc
sanitizer_symbolizer_win.cc
sanitizer_thread_registry.cc
- sanitizer_win.cc
- )
+ sanitizer_win.cc)
set(SANITIZER_LIBCDEP_SOURCES
sanitizer_common_libcdep.cc
sanitizer_linux_libcdep.cc
sanitizer_posix_libcdep.cc
+ sanitizer_stacktrace_libcdep.cc
sanitizer_stoptheworld_linux_libcdep.cc
sanitizer_symbolizer_libcdep.cc
- sanitizer_symbolizer_linux_libcdep.cc
- )
+ sanitizer_symbolizer_posix_libcdep.cc)
# Explicitly list all sanitizer_common headers. Not all of these are
# included in sanitizer_common source files, but we need to depend on
# headers when building our custom unit tests.
set(SANITIZER_HEADERS
sanitizer_allocator.h
+ sanitizer_allocator_internal.h
sanitizer_atomic_clang.h
sanitizer_atomic_msvc.h
sanitizer_atomic.h
sanitizer_common.h
sanitizer_common_interceptors.inc
+ sanitizer_common_interceptors_ioctl.inc
sanitizer_common_interceptors_scanf.inc
sanitizer_common_syscalls.inc
sanitizer_flags.h
sanitizer_internal_defs.h
sanitizer_lfstack.h
sanitizer_libc.h
+ sanitizer_libignore.h
sanitizer_linux.h
sanitizer_list.h
sanitizer_mutex.h
@@ -56,21 +61,32 @@ set(SANITIZER_HEADERS
sanitizer_stackdepot.h
sanitizer_stacktrace.h
sanitizer_symbolizer.h
- sanitizer_thread_registry.h
- )
+ sanitizer_thread_registry.h)
-set(SANITIZER_CFLAGS
- ${SANITIZER_COMMON_CFLAGS}
- -fno-rtti)
+if (NOT MSVC)
+ set(SANITIZER_CFLAGS
+ ${SANITIZER_COMMON_CFLAGS}
+ -fno-rtti)
+else()
+ set(SANITIZER_CFLAGS
+ ${SANITIZER_COMMON_CFLAGS}
+ /GR-)
+endif()
+
+if(SUPPORTS_GLOBAL_CONSTRUCTORS_FLAG)
+ list(APPEND SANITIZER_CFLAGS -Wglobal-constructors)
+endif()
set(SANITIZER_RUNTIME_LIBRARIES)
if(APPLE)
# Build universal binary on APPLE.
- add_compiler_rt_osx_object_library(RTSanitizerCommon
- ARCH ${SANITIZER_COMMON_SUPPORTED_ARCH}
- SOURCES ${SANITIZER_SOURCES} ${SANITIZER_LIBCDEP_SOURCES}
- CFLAGS ${SANITIZER_CFLAGS})
- list(APPEND SANITIZER_RUNTIME_LIBRARIES RTSanitizerCommon.osx)
+ foreach(os ${SANITIZER_COMMON_SUPPORTED_DARWIN_OS})
+ add_compiler_rt_darwin_object_library(RTSanitizerCommon ${os}
+ ARCH ${SANITIZER_COMMON_SUPPORTED_ARCH}
+ SOURCES ${SANITIZER_SOURCES} ${SANITIZER_LIBCDEP_SOURCES}
+ CFLAGS ${SANITIZER_CFLAGS})
+ list(APPEND SANITIZER_RUNTIME_LIBRARIES RTSanitizerCommon.${os})
+ endforeach()
elseif(ANDROID)
add_library(RTSanitizerCommon.arm.android OBJECT
${SANITIZER_SOURCES} ${SANITIZER_LIBCDEP_SOURCES})
@@ -88,7 +104,8 @@ else()
SOURCES $<TARGET_OBJECTS:RTSanitizerCommon.${arch}>
$<TARGET_OBJECTS:RTSanitizerCommonLibc.${arch}>
CFLAGS ${SANITIZER_CFLAGS})
- list(APPEND SANITIZER_RUNTIME_LIBRARIES RTSanitizerCommon.${arch})
+ list(APPEND SANITIZER_RUNTIME_LIBRARIES RTSanitizerCommon.${arch}
+ RTSanitizerCommonLibc.${arch})
endforeach()
endif()
diff --git a/lib/sanitizer_common/sanitizer_allocator.cc b/lib/sanitizer_common/sanitizer_allocator.cc
index a97a70937a43..daaf7e1ce055 100644
--- a/lib/sanitizer_common/sanitizer_allocator.cc
+++ b/lib/sanitizer_common/sanitizer_allocator.cc
@@ -9,44 +9,103 @@
//
// This file is shared between AddressSanitizer and ThreadSanitizer
// run-time libraries.
-// This allocator that is used inside run-times.
+// This allocator is used inside run-times.
//===----------------------------------------------------------------------===//
+#include "sanitizer_allocator.h"
+#include "sanitizer_allocator_internal.h"
#include "sanitizer_common.h"
+#include "sanitizer_flags.h"
-// FIXME: We should probably use more low-level allocator that would
-// mmap some pages and split them into chunks to fulfill requests.
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
-extern "C" void *__libc_malloc(__sanitizer::uptr size);
+namespace __sanitizer {
+
+// ThreadSanitizer for Go uses libc malloc/free.
+#if defined(SANITIZER_GO)
+# if SANITIZER_LINUX && !SANITIZER_ANDROID
+extern "C" void *__libc_malloc(uptr size);
extern "C" void __libc_free(void *ptr);
-# define LIBC_MALLOC __libc_malloc
-# define LIBC_FREE __libc_free
-#else // SANITIZER_LINUX && !SANITIZER_ANDROID
-# include <stdlib.h>
-# define LIBC_MALLOC malloc
-# define LIBC_FREE free
-#endif // SANITIZER_LINUX && !SANITIZER_ANDROID
+# define LIBC_MALLOC __libc_malloc
+# define LIBC_FREE __libc_free
+# else
+# include <stdlib.h>
+# define LIBC_MALLOC malloc
+# define LIBC_FREE free
+# endif
-namespace __sanitizer {
+static void *RawInternalAlloc(uptr size, InternalAllocatorCache *cache) {
+ (void)cache;
+ return LIBC_MALLOC(size);
+}
+
+static void RawInternalFree(void *ptr, InternalAllocatorCache *cache) {
+ (void)cache;
+ LIBC_FREE(ptr);
+}
+
+InternalAllocator *internal_allocator() {
+ return 0;
+}
+
+#else // SANITIZER_GO
+
+static ALIGNED(64) char internal_alloc_placeholder[sizeof(InternalAllocator)];
+static atomic_uint8_t internal_allocator_initialized;
+static StaticSpinMutex internal_alloc_init_mu;
+
+static InternalAllocatorCache internal_allocator_cache;
+static StaticSpinMutex internal_allocator_cache_mu;
+
+InternalAllocator *internal_allocator() {
+ InternalAllocator *internal_allocator_instance =
+ reinterpret_cast<InternalAllocator *>(&internal_alloc_placeholder);
+ if (atomic_load(&internal_allocator_initialized, memory_order_acquire) == 0) {
+ SpinMutexLock l(&internal_alloc_init_mu);
+ if (atomic_load(&internal_allocator_initialized, memory_order_relaxed) ==
+ 0) {
+ internal_allocator_instance->Init();
+ atomic_store(&internal_allocator_initialized, 1, memory_order_release);
+ }
+ }
+ return internal_allocator_instance;
+}
+
+static void *RawInternalAlloc(uptr size, InternalAllocatorCache *cache) {
+ if (cache == 0) {
+ SpinMutexLock l(&internal_allocator_cache_mu);
+ return internal_allocator()->Allocate(&internal_allocator_cache, size, 8,
+ false);
+ }
+ return internal_allocator()->Allocate(cache, size, 8, false);
+}
+
+static void RawInternalFree(void *ptr, InternalAllocatorCache *cache) {
+ if (cache == 0) {
+ SpinMutexLock l(&internal_allocator_cache_mu);
+ return internal_allocator()->Deallocate(&internal_allocator_cache, ptr);
+ }
+ internal_allocator()->Deallocate(cache, ptr);
+}
+
+#endif // SANITIZER_GO
const u64 kBlockMagic = 0x6A6CB03ABCEBC041ull;
-void *InternalAlloc(uptr size) {
+void *InternalAlloc(uptr size, InternalAllocatorCache *cache) {
if (size + sizeof(u64) < size)
return 0;
- void *p = LIBC_MALLOC(size + sizeof(u64));
+ void *p = RawInternalAlloc(size + sizeof(u64), cache);
if (p == 0)
return 0;
((u64*)p)[0] = kBlockMagic;
return (char*)p + sizeof(u64);
}
-void InternalFree(void *addr) {
+void InternalFree(void *addr, InternalAllocatorCache *cache) {
if (addr == 0)
return;
addr = (char*)addr - sizeof(u64);
- CHECK_EQ(((u64*)addr)[0], kBlockMagic);
+ CHECK_EQ(kBlockMagic, ((u64*)addr)[0]);
((u64*)addr)[0] = 0;
- LIBC_FREE(addr);
+ RawInternalFree(addr, cache);
}
// LowLevelAllocator
@@ -81,4 +140,14 @@ bool CallocShouldReturnNullDueToOverflow(uptr size, uptr n) {
return (max / size) < n;
}
+void *AllocatorReturnNull() {
+ if (common_flags()->allocator_may_return_null)
+ return 0;
+ Report("%s's allocator is terminating the process instead of returning 0\n",
+ SanitizerToolName);
+ Report("If you don't like this behavior set allocator_may_return_null=1\n");
+ CHECK(0);
+ return 0;
+}
+
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_allocator.h b/lib/sanitizer_common/sanitizer_allocator.h
index 0542addb7f37..6075cfe92aac 100644
--- a/lib/sanitizer_common/sanitizer_allocator.h
+++ b/lib/sanitizer_common/sanitizer_allocator.h
@@ -23,6 +23,9 @@
namespace __sanitizer {
+// Depending on allocator_may_return_null either return 0 or crash.
+void *AllocatorReturnNull();
+
// SizeClassMap maps allocation sizes into size classes and back.
// Class 0 corresponds to size 0.
// Classes 1 - 16 correspond to sizes 16 to 256 (size = class_id * 16).
@@ -279,6 +282,9 @@ struct NoOpMapUnmapCallback {
void OnUnmap(uptr p, uptr size) const { }
};
+// Callback type for iterating over chunks.
+typedef void (*ForEachChunkCallback)(uptr chunk, void *arg);
+
// SizeClassAllocator64 -- allocator for 64-bit address space.
//
// Space: a portion of address space of kSpaceSize bytes starting at
@@ -344,15 +350,15 @@ class SizeClassAllocator64 {
region->n_freed += b->count;
}
- static bool PointerIsMine(void *p) {
+ static bool PointerIsMine(const void *p) {
return reinterpret_cast<uptr>(p) / kSpaceSize == kSpaceBeg / kSpaceSize;
}
- static uptr GetSizeClass(void *p) {
+ static uptr GetSizeClass(const void *p) {
return (reinterpret_cast<uptr>(p) / kRegionSize) % kNumClassesRounded;
}
- void *GetBlockBegin(void *p) {
+ void *GetBlockBegin(const void *p) {
uptr class_id = GetSizeClass(p);
uptr size = SizeClassMap::Size(class_id);
if (!size) return 0;
@@ -374,7 +380,7 @@ class SizeClassAllocator64 {
uptr ClassID(uptr size) { return SizeClassMap::ClassID(size); }
- void *GetMetaData(void *p) {
+ void *GetMetaData(const void *p) {
uptr class_id = GetSizeClass(p);
uptr size = SizeClassMap::Size(class_id);
uptr chunk_idx = GetChunkIdx(reinterpret_cast<uptr>(p), size);
@@ -433,20 +439,18 @@ class SizeClassAllocator64 {
}
}
- // Iterate over existing chunks. May include chunks that are not currently
- // allocated to the user (e.g. freed).
- // The caller is expected to call ForceLock() before calling this function.
- template<typename Callable>
- void ForEachChunk(const Callable &callback) {
+ // Iterate over all existing chunks.
+ // The allocator must be locked when calling this function.
+ void ForEachChunk(ForEachChunkCallback callback, void *arg) {
for (uptr class_id = 1; class_id < kNumClasses; class_id++) {
RegionInfo *region = GetRegionInfo(class_id);
uptr chunk_size = SizeClassMap::Size(class_id);
uptr region_beg = kSpaceBeg + class_id * kRegionSize;
- for (uptr p = region_beg;
- p < region_beg + region->allocated_user;
- p += chunk_size) {
- // Too slow: CHECK_EQ((void *)p, GetBlockBegin((void *)p));
- callback((void *)p);
+ for (uptr chunk = region_beg;
+ chunk < region_beg + region->allocated_user;
+ chunk += chunk_size) {
+ // Too slow: CHECK_EQ((void *)chunk, GetBlockBegin((void *)chunk));
+ callback(chunk, arg);
}
}
}
@@ -639,7 +643,7 @@ class SizeClassAllocator32 {
alignment <= SizeClassMap::kMaxSize;
}
- void *GetMetaData(void *p) {
+ void *GetMetaData(const void *p) {
CHECK(PointerIsMine(p));
uptr mem = reinterpret_cast<uptr>(p);
uptr beg = ComputeRegionBeg(mem);
@@ -671,15 +675,15 @@ class SizeClassAllocator32 {
sci->free_list.push_front(b);
}
- bool PointerIsMine(void *p) {
+ bool PointerIsMine(const void *p) {
return GetSizeClass(p) != 0;
}
- uptr GetSizeClass(void *p) {
+ uptr GetSizeClass(const void *p) {
return possible_regions[ComputeRegionId(reinterpret_cast<uptr>(p))];
}
- void *GetBlockBegin(void *p) {
+ void *GetBlockBegin(const void *p) {
CHECK(PointerIsMine(p));
uptr mem = reinterpret_cast<uptr>(p);
uptr beg = ComputeRegionBeg(mem);
@@ -726,21 +730,19 @@ class SizeClassAllocator32 {
}
}
- // Iterate over existing chunks. May include chunks that are not currently
- // allocated to the user (e.g. freed).
- // The caller is expected to call ForceLock() before calling this function.
- template<typename Callable>
- void ForEachChunk(const Callable &callback) {
+ // Iterate over all existing chunks.
+ // The allocator must be locked when calling this function.
+ void ForEachChunk(ForEachChunkCallback callback, void *arg) {
for (uptr region = 0; region < kNumPossibleRegions; region++)
if (possible_regions[region]) {
uptr chunk_size = SizeClassMap::Size(possible_regions[region]);
uptr max_chunks_in_region = kRegionSize / (chunk_size + kMetadataSize);
uptr region_beg = region * kRegionSize;
- for (uptr p = region_beg;
- p < region_beg + max_chunks_in_region * chunk_size;
- p += chunk_size) {
- // Too slow: CHECK_EQ((void *)p, GetBlockBegin((void *)p));
- callback((void *)p);
+ for (uptr chunk = region_beg;
+ chunk < region_beg + max_chunks_in_region * chunk_size;
+ chunk += chunk_size) {
+ // Too slow: CHECK_EQ((void *)chunk, GetBlockBegin((void *)chunk));
+ callback(chunk, arg);
}
}
}
@@ -779,7 +781,7 @@ class SizeClassAllocator32 {
MapUnmapCallback().OnMap(res, kRegionSize);
stat->Add(AllocatorStatMmapped, kRegionSize);
CHECK_EQ(0U, (res & (kRegionSize - 1)));
- possible_regions.set(ComputeRegionId(res), class_id);
+ possible_regions.set(ComputeRegionId(res), static_cast<u8>(class_id));
return res;
}
@@ -942,7 +944,7 @@ class LargeMmapAllocator {
uptr map_size = RoundUpMapSize(size);
if (alignment > page_size_)
map_size += alignment;
- if (map_size < size) return 0; // Overflow.
+ if (map_size < size) return AllocatorReturnNull(); // Overflow.
uptr map_beg = reinterpret_cast<uptr>(
MmapOrDie(map_size, "LargeMmapAllocator"));
MapUnmapCallback().OnMap(map_beg, map_size);
@@ -961,6 +963,7 @@ class LargeMmapAllocator {
{
SpinMutexLock l(&mutex_);
uptr idx = n_chunks_++;
+ chunks_sorted_ = false;
CHECK_LT(idx, kMaxNumChunks);
h->chunk_idx = idx;
chunks_[idx] = h;
@@ -984,6 +987,7 @@ class LargeMmapAllocator {
chunks_[idx] = chunks_[n_chunks_ - 1];
chunks_[idx]->chunk_idx = idx;
n_chunks_--;
+ chunks_sorted_ = false;
stats.n_frees++;
stats.currently_allocated -= h->map_size;
stat->Add(AllocatorStatFreed, h->map_size);
@@ -1004,7 +1008,7 @@ class LargeMmapAllocator {
return res;
}
- bool PointerIsMine(void *p) {
+ bool PointerIsMine(const void *p) {
return GetBlockBegin(p) != 0;
}
@@ -1013,13 +1017,16 @@ class LargeMmapAllocator {
}
// At least page_size_/2 metadata bytes is available.
- void *GetMetaData(void *p) {
+ void *GetMetaData(const void *p) {
// Too slow: CHECK_EQ(p, GetBlockBegin(p));
- CHECK(IsAligned(reinterpret_cast<uptr>(p), page_size_));
+ if (!IsAligned(reinterpret_cast<uptr>(p), page_size_)) {
+ Printf("%s: bad pointer %p\n", SanitizerToolName, p);
+ CHECK(IsAligned(reinterpret_cast<uptr>(p), page_size_));
+ }
return GetHeader(p) + 1;
}
- void *GetBlockBegin(void *ptr) {
+ void *GetBlockBegin(const void *ptr) {
uptr p = reinterpret_cast<uptr>(ptr);
SpinMutexLock l(&mutex_);
uptr nearest_chunk = 0;
@@ -1041,6 +1048,49 @@ class LargeMmapAllocator {
return GetUser(h);
}
+ // This function does the same as GetBlockBegin, but is much faster.
+ // Must be called with the allocator locked.
+ void *GetBlockBeginFastLocked(void *ptr) {
+ mutex_.CheckLocked();
+ uptr p = reinterpret_cast<uptr>(ptr);
+ uptr n = n_chunks_;
+ if (!n) return 0;
+ if (!chunks_sorted_) {
+ // Do one-time sort. chunks_sorted_ is reset in Allocate/Deallocate.
+ SortArray(reinterpret_cast<uptr*>(chunks_), n);
+ for (uptr i = 0; i < n; i++)
+ chunks_[i]->chunk_idx = i;
+ chunks_sorted_ = true;
+ min_mmap_ = reinterpret_cast<uptr>(chunks_[0]);
+ max_mmap_ = reinterpret_cast<uptr>(chunks_[n - 1]) +
+ chunks_[n - 1]->map_size;
+ }
+ if (p < min_mmap_ || p >= max_mmap_)
+ return 0;
+ uptr beg = 0, end = n - 1;
+ // This loop is a log(n) lower_bound. It does not check for the exact match
+ // to avoid expensive cache-thrashing loads.
+ while (end - beg >= 2) {
+ uptr mid = (beg + end) / 2; // Invariant: mid >= beg + 1
+ if (p < reinterpret_cast<uptr>(chunks_[mid]))
+ end = mid - 1; // We are not interested in chunks_[mid].
+ else
+ beg = mid; // chunks_[mid] may still be what we want.
+ }
+
+ if (beg < end) {
+ CHECK_EQ(beg + 1, end);
+ // There are 2 chunks left, choose one.
+ if (p >= reinterpret_cast<uptr>(chunks_[end]))
+ beg = end;
+ }
+
+ Header *h = chunks_[beg];
+ if (h->map_beg + h->map_size <= p || p < h->map_beg)
+ return 0;
+ return GetUser(h);
+ }
+
void PrintStats() {
Printf("Stats: LargeMmapAllocator: allocated %zd times, "
"remains %zd (%zd K) max %zd M; by size logs: ",
@@ -1064,13 +1114,11 @@ class LargeMmapAllocator {
mutex_.Unlock();
}
- // Iterate over existing chunks. May include chunks that are not currently
- // allocated to the user (e.g. freed).
- // The caller is expected to call ForceLock() before calling this function.
- template<typename Callable>
- void ForEachChunk(const Callable &callback) {
+ // Iterate over all existing chunks.
+ // The allocator must be locked when calling this function.
+ void ForEachChunk(ForEachChunkCallback callback, void *arg) {
for (uptr i = 0; i < n_chunks_; i++)
- callback(GetUser(chunks_[i]));
+ callback(reinterpret_cast<uptr>(GetUser(chunks_[i])), arg);
}
private:
@@ -1083,13 +1131,15 @@ class LargeMmapAllocator {
};
Header *GetHeader(uptr p) {
- CHECK_EQ(p % page_size_, 0);
+ CHECK(IsAligned(p, page_size_));
return reinterpret_cast<Header*>(p - page_size_);
}
- Header *GetHeader(void *p) { return GetHeader(reinterpret_cast<uptr>(p)); }
+ Header *GetHeader(const void *p) {
+ return GetHeader(reinterpret_cast<uptr>(p));
+ }
void *GetUser(Header *h) {
- CHECK_EQ((uptr)h % page_size_, 0);
+ CHECK(IsAligned((uptr)h, page_size_));
return reinterpret_cast<void*>(reinterpret_cast<uptr>(h) + page_size_);
}
@@ -1100,6 +1150,8 @@ class LargeMmapAllocator {
uptr page_size_;
Header *chunks_[kMaxNumChunks];
uptr n_chunks_;
+ uptr min_mmap_, max_mmap_;
+ bool chunks_sorted_;
struct Stats {
uptr n_allocs, n_frees, currently_allocated, max_allocated, by_size_log[64];
} stats;
@@ -1128,7 +1180,7 @@ class CombinedAllocator {
if (size == 0)
size = 1;
if (size + alignment < size)
- return 0;
+ return AllocatorReturnNull();
if (alignment > 8)
size = RoundUpTo(size, alignment);
void *res;
@@ -1179,18 +1231,26 @@ class CombinedAllocator {
return primary_.PointerIsMine(p);
}
- void *GetMetaData(void *p) {
+ void *GetMetaData(const void *p) {
if (primary_.PointerIsMine(p))
return primary_.GetMetaData(p);
return secondary_.GetMetaData(p);
}
- void *GetBlockBegin(void *p) {
+ void *GetBlockBegin(const void *p) {
if (primary_.PointerIsMine(p))
return primary_.GetBlockBegin(p);
return secondary_.GetBlockBegin(p);
}
+ // This function does the same as GetBlockBegin, but is much faster.
+ // Must be called with the allocator locked.
+ void *GetBlockBeginFastLocked(void *p) {
+ if (primary_.PointerIsMine(p))
+ return primary_.GetBlockBegin(p);
+ return secondary_.GetBlockBeginFastLocked(p);
+ }
+
uptr GetActuallyAllocatedSize(void *p) {
if (primary_.PointerIsMine(p))
return primary_.GetActuallyAllocatedSize(p);
@@ -1236,13 +1296,11 @@ class CombinedAllocator {
primary_.ForceUnlock();
}
- // Iterate over existing chunks. May include chunks that are not currently
- // allocated to the user (e.g. freed).
- // The caller is expected to call ForceLock() before calling this function.
- template<typename Callable>
- void ForEachChunk(const Callable &callback) {
- primary_.ForEachChunk(callback);
- secondary_.ForEachChunk(callback);
+ // Iterate over all existing chunks.
+ // The allocator must be locked when calling this function.
+ void ForEachChunk(ForEachChunkCallback callback, void *arg) {
+ primary_.ForEachChunk(callback, arg);
+ secondary_.ForEachChunk(callback, arg);
}
private:
diff --git a/lib/sanitizer_common/sanitizer_allocator_internal.h b/lib/sanitizer_common/sanitizer_allocator_internal.h
new file mode 100644
index 000000000000..5b24bfdafa36
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_allocator_internal.h
@@ -0,0 +1,64 @@
+//===-- sanitizer_allocator_internal.h -------------------------- C++ -----===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This allocator is used inside run-times.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SANITIZER_ALLOCATOR_INTERNAL_H
+#define SANITIZER_ALLOCATOR_INTERNAL_H
+
+#include "sanitizer_allocator.h"
+#include "sanitizer_internal_defs.h"
+
+namespace __sanitizer {
+
+// FIXME: Check if we may use even more compact size class map for internal
+// purposes.
+typedef CompactSizeClassMap InternalSizeClassMap;
+
+static const uptr kInternalAllocatorSpace = 0;
+#if SANITIZER_WORDSIZE == 32
+static const u64 kInternalAllocatorSize = (1ULL << 32);
+static const uptr kInternalAllocatorRegionSizeLog = 20;
+#else
+static const u64 kInternalAllocatorSize = (1ULL << 47);
+static const uptr kInternalAllocatorRegionSizeLog = 24;
+#endif
+static const uptr kInternalAllocatorFlatByteMapSize =
+ kInternalAllocatorSize >> kInternalAllocatorRegionSizeLog;
+typedef SizeClassAllocator32<
+ kInternalAllocatorSpace, kInternalAllocatorSize, 16, InternalSizeClassMap,
+ kInternalAllocatorRegionSizeLog,
+ FlatByteMap<kInternalAllocatorFlatByteMapSize> > PrimaryInternalAllocator;
+
+typedef SizeClassAllocatorLocalCache<PrimaryInternalAllocator>
+ InternalAllocatorCache;
+
+// We don't want our internal allocator to do any map/unmap operations.
+struct CrashOnMapUnmap {
+ void OnMap(uptr p, uptr size) const {
+ RAW_CHECK_MSG(0, "Unexpected mmap in InternalAllocator!");
+ }
+ void OnUnmap(uptr p, uptr size) const {
+ RAW_CHECK_MSG(0, "Unexpected munmap in InternalAllocator!");
+ }
+};
+
+typedef CombinedAllocator<PrimaryInternalAllocator, InternalAllocatorCache,
+ LargeMmapAllocator<CrashOnMapUnmap> >
+ InternalAllocator;
+
+void *InternalAlloc(uptr size, InternalAllocatorCache *cache = 0);
+void InternalFree(void *p, InternalAllocatorCache *cache = 0);
+InternalAllocator *internal_allocator();
+
+} // namespace __sanitizer
+
+#endif // SANITIZER_ALLOCATOR_INTERNAL_H
diff --git a/lib/sanitizer_common/sanitizer_atomic_clang.h b/lib/sanitizer_common/sanitizer_atomic_clang.h
index 30158b49683c..c5aa939b58c4 100644
--- a/lib/sanitizer_common/sanitizer_atomic_clang.h
+++ b/lib/sanitizer_common/sanitizer_atomic_clang.h
@@ -41,7 +41,17 @@ INLINE typename T::Type atomic_load(
| memory_order_acquire | memory_order_seq_cst));
DCHECK(!((uptr)a % sizeof(*a)));
typename T::Type v;
- // FIXME(dvyukov): 64-bit load is not atomic on 32-bits.
+ // FIXME:
+ // 64-bit atomic operations are not atomic on 32-bit platforms.
+ // The implementation lacks necessary memory fences on ARM/PPC.
+ // We would like to use compiler builtin atomic operations,
+ // but they are mostly broken:
+ // - they lead to vastly inefficient code generation
+ // (http://llvm.org/bugs/show_bug.cgi?id=17281)
+ // - 64-bit atomic operations are not implemented on x86_32
+ // (http://llvm.org/bugs/show_bug.cgi?id=15034)
+ // - they are not implemented on ARM
+ // error: undefined reference to '__atomic_load_4'
if (mo == memory_order_relaxed) {
v = a->val_dont_use;
} else {
@@ -57,7 +67,6 @@ INLINE void atomic_store(volatile T *a, typename T::Type v, memory_order mo) {
DCHECK(mo & (memory_order_relaxed | memory_order_release
| memory_order_seq_cst));
DCHECK(!((uptr)a % sizeof(*a)));
- // FIXME(dvyukov): 64-bit store is not atomic on 32-bits.
if (mo == memory_order_relaxed) {
a->val_dont_use = v;
} else {
@@ -121,4 +130,6 @@ INLINE bool atomic_compare_exchange_weak(volatile T *a,
} // namespace __sanitizer
+#undef ATOMIC_ORDER
+
#endif // SANITIZER_ATOMIC_CLANG_H
diff --git a/lib/sanitizer_common/sanitizer_common.cc b/lib/sanitizer_common/sanitizer_common.cc
index abbe5f92d1a9..7e870ff65455 100644
--- a/lib/sanitizer_common/sanitizer_common.cc
+++ b/lib/sanitizer_common/sanitizer_common.cc
@@ -12,12 +12,14 @@
//===----------------------------------------------------------------------===//
#include "sanitizer_common.h"
+#include "sanitizer_flags.h"
#include "sanitizer_libc.h"
+#include "sanitizer_stacktrace.h"
+#include "sanitizer_symbolizer.h"
namespace __sanitizer {
const char *SanitizerToolName = "SanitizerTool";
-uptr SanitizerVerbosity = 0;
uptr GetPageSizeCached() {
static uptr PageSize;
@@ -26,22 +28,29 @@ uptr GetPageSizeCached() {
return PageSize;
}
-static bool log_to_file = false; // Set to true by __sanitizer_set_report_path
// By default, dump to stderr. If |log_to_file| is true and |report_fd_pid|
// isn't equal to the current PID, try to obtain file descriptor by opening
// file "report_path_prefix.<PID>".
fd_t report_fd = kStderrFd;
-static char report_path_prefix[4096]; // Set via __sanitizer_set_report_path.
+
+// Set via __sanitizer_set_report_path.
+bool log_to_file = false;
+char report_path_prefix[sizeof(report_path_prefix)];
+
// PID of process that opened |report_fd|. If a fork() occurs, the PID of the
// child thread will be different from |report_fd_pid|.
-static uptr report_fd_pid = 0;
+uptr report_fd_pid = 0;
-static void (*DieCallback)(void);
-void SetDieCallback(void (*callback)(void)) {
+static DieCallbackType DieCallback;
+void SetDieCallback(DieCallbackType callback) {
DieCallback = callback;
}
+DieCallbackType GetDieCallback() {
+ return DieCallback;
+}
+
void NORETURN Die() {
if (DieCallback) {
DieCallback();
@@ -64,36 +73,6 @@ void NORETURN CheckFailed(const char *file, int line, const char *cond,
Die();
}
-void MaybeOpenReportFile() {
- if (!log_to_file || (report_fd_pid == internal_getpid())) return;
- InternalScopedBuffer<char> report_path_full(4096);
- internal_snprintf(report_path_full.data(), report_path_full.size(),
- "%s.%d", report_path_prefix, internal_getpid());
- uptr openrv = OpenFile(report_path_full.data(), true);
- if (internal_iserror(openrv)) {
- report_fd = kStderrFd;
- log_to_file = false;
- Report("ERROR: Can't open file: %s\n", report_path_full.data());
- Die();
- }
- if (report_fd != kInvalidFd) {
- // We're in the child. Close the parent's log.
- internal_close(report_fd);
- }
- report_fd = openrv;
- report_fd_pid = internal_getpid();
-}
-
-void RawWrite(const char *buffer) {
- static const char *kRawWriteError = "RawWrite can't output requested buffer!";
- uptr length = (uptr)internal_strlen(buffer);
- MaybeOpenReportFile();
- if (length != internal_write(report_fd, buffer, length)) {
- internal_write(report_fd, kRawWriteError, internal_strlen(kRawWriteError));
- Die();
- }
-}
-
uptr ReadFileToBuffer(const char *file_name, char **buff,
uptr *buff_size, uptr max_len) {
uptr PageSize = GetPageSizeCached();
@@ -159,14 +138,103 @@ void *MmapAlignedOrDie(uptr size, uptr alignment, const char *mem_type) {
return (void*)res;
}
+const char *StripPathPrefix(const char *filepath,
+ const char *strip_path_prefix) {
+ if (filepath == 0) return 0;
+ if (strip_path_prefix == 0) return filepath;
+ const char *pos = internal_strstr(filepath, strip_path_prefix);
+ if (pos == 0) return filepath;
+ pos += internal_strlen(strip_path_prefix);
+ if (pos[0] == '.' && pos[1] == '/')
+ pos += 2;
+ return pos;
+}
+
+void PrintSourceLocation(InternalScopedString *buffer, const char *file,
+ int line, int column) {
+ CHECK(file);
+ buffer->append("%s",
+ StripPathPrefix(file, common_flags()->strip_path_prefix));
+ if (line > 0) {
+ buffer->append(":%d", line);
+ if (column > 0)
+ buffer->append(":%d", column);
+ }
+}
+
+void PrintModuleAndOffset(InternalScopedString *buffer, const char *module,
+ uptr offset) {
+ buffer->append("(%s+0x%zx)",
+ StripPathPrefix(module, common_flags()->strip_path_prefix),
+ offset);
+}
+
+void ReportErrorSummary(const char *error_message) {
+ if (!common_flags()->print_summary)
+ return;
+ InternalScopedBuffer<char> buff(kMaxSummaryLength);
+ internal_snprintf(buff.data(), buff.size(),
+ "SUMMARY: %s: %s", SanitizerToolName, error_message);
+ __sanitizer_report_error_summary(buff.data());
+}
+
void ReportErrorSummary(const char *error_type, const char *file,
int line, const char *function) {
- const int kMaxSize = 1024; // We don't want a summary too long.
- InternalScopedBuffer<char> buff(kMaxSize);
- internal_snprintf(buff.data(), kMaxSize, "%s: %s %s:%d %s",
- SanitizerToolName, error_type,
- file ? file : "??", line, function ? function : "??");
- __sanitizer_report_error_summary(buff.data());
+ if (!common_flags()->print_summary)
+ return;
+ InternalScopedBuffer<char> buff(kMaxSummaryLength);
+ internal_snprintf(
+ buff.data(), buff.size(), "%s %s:%d %s", error_type,
+ file ? StripPathPrefix(file, common_flags()->strip_path_prefix) : "??",
+ line, function ? function : "??");
+ ReportErrorSummary(buff.data());
+}
+
+void ReportErrorSummary(const char *error_type, StackTrace *stack) {
+ if (!common_flags()->print_summary)
+ return;
+ AddressInfo ai;
+#if !SANITIZER_GO
+ if (stack->size > 0 && Symbolizer::Get()->IsAvailable()) {
+ // Currently, we include the first stack frame into the report summary.
+ // Maybe sometimes we need to choose another frame (e.g. skip memcpy/etc).
+ uptr pc = StackTrace::GetPreviousInstructionPc(stack->trace[0]);
+ Symbolizer::Get()->SymbolizeCode(pc, &ai, 1);
+ }
+#endif
+ ReportErrorSummary(error_type, ai.file, ai.line, ai.function);
+}
+
+LoadedModule::LoadedModule(const char *module_name, uptr base_address) {
+ full_name_ = internal_strdup(module_name);
+ base_address_ = base_address;
+ n_ranges_ = 0;
+}
+
+void LoadedModule::addAddressRange(uptr beg, uptr end) {
+ CHECK_LT(n_ranges_, kMaxNumberOfAddressRanges);
+ ranges_[n_ranges_].beg = beg;
+ ranges_[n_ranges_].end = end;
+ n_ranges_++;
+}
+
+bool LoadedModule::containsAddress(uptr address) const {
+ for (uptr i = 0; i < n_ranges_; i++) {
+ if (ranges_[i].beg <= address && address < ranges_[i].end)
+ return true;
+ }
+ return false;
+}
+
+char *StripModuleName(const char *module) {
+ if (module == 0)
+ return 0;
+ const char *short_module_name = internal_strrchr(module, '/');
+ if (short_module_name)
+ short_module_name += 1;
+ else
+ short_module_name = module;
+ return internal_strdup(short_module_name);
}
} // namespace __sanitizer
@@ -175,7 +243,8 @@ using namespace __sanitizer; // NOLINT
extern "C" {
void __sanitizer_set_report_path(const char *path) {
- if (!path) return;
+ if (!path)
+ return;
uptr len = internal_strlen(path);
if (len > sizeof(report_path_prefix) - 100) {
Report("ERROR: Path is too long: %c%c%c%c%c%c%c%c...\n",
@@ -183,18 +252,21 @@ void __sanitizer_set_report_path(const char *path) {
path[4], path[5], path[6], path[7]);
Die();
}
- internal_strncpy(report_path_prefix, path, sizeof(report_path_prefix));
- report_path_prefix[len] = '\0';
- report_fd = kInvalidFd;
- log_to_file = true;
-}
-
-void __sanitizer_set_report_fd(int fd) {
if (report_fd != kStdoutFd &&
report_fd != kStderrFd &&
report_fd != kInvalidFd)
internal_close(report_fd);
- report_fd = fd;
+ report_fd = kInvalidFd;
+ log_to_file = false;
+ if (internal_strcmp(path, "stdout") == 0) {
+ report_fd = kStdoutFd;
+ } else if (internal_strcmp(path, "stderr") == 0) {
+ report_fd = kStderrFd;
+ } else {
+ internal_strncpy(report_path_prefix, path, sizeof(report_path_prefix));
+ report_path_prefix[len] = '\0';
+ log_to_file = true;
+ }
}
void NOINLINE __sanitizer_sandbox_on_notify(void *reserved) {
@@ -203,6 +275,6 @@ void NOINLINE __sanitizer_sandbox_on_notify(void *reserved) {
}
void __sanitizer_report_error_summary(const char *error_summary) {
- Printf("SUMMARY: %s\n", error_summary);
+ Printf("%s\n", error_summary);
}
} // extern "C"
diff --git a/lib/sanitizer_common/sanitizer_common.h b/lib/sanitizer_common/sanitizer_common.h
index d800360169fb..cf8a12d65a09 100644
--- a/lib/sanitizer_common/sanitizer_common.h
+++ b/lib/sanitizer_common/sanitizer_common.h
@@ -33,12 +33,14 @@ const uptr kCacheLineSize = 128;
const uptr kCacheLineSize = 64;
#endif
+const uptr kMaxPathLength = 512;
+
extern const char *SanitizerToolName; // Can be changed by the tool.
-extern uptr SanitizerVerbosity;
uptr GetPageSize();
uptr GetPageSizeCached();
uptr GetMmapGranularity();
+uptr GetMaxVirtualAddress();
// Threads
uptr GetTid();
uptr GetThreadSelf();
@@ -59,10 +61,6 @@ void *MmapAlignedOrDie(uptr size, uptr alignment, const char *mem_type);
bool MemoryRangeIsAvailable(uptr range_start, uptr range_end);
void FlushUnneededShadowMemory(uptr addr, uptr size);
-// Internal allocator
-void *InternalAlloc(uptr size);
-void InternalFree(void *p);
-
// InternalScopedBuffer can be used instead of large stack arrays to
// keep frame size low.
// FIXME: use InternalAlloc instead of MmapOrDie once
@@ -89,6 +87,23 @@ class InternalScopedBuffer {
void operator=(const InternalScopedBuffer&);
};
+class InternalScopedString : public InternalScopedBuffer<char> {
+ public:
+ explicit InternalScopedString(uptr max_length)
+ : InternalScopedBuffer<char>(max_length), length_(0) {
+ (*this)[0] = '\0';
+ }
+ uptr length() { return length_; }
+ void clear() {
+ (*this)[0] = '\0';
+ length_ = 0;
+ }
+ void append(const char *format, ...);
+
+ private:
+ uptr length_;
+};
+
// Simple low-level (mmap-based) allocator for internal use. Doesn't have
// constructor, so all instances of LowLevelAllocator should be
// linker initialized.
@@ -108,13 +123,19 @@ void SetLowLevelAllocateCallback(LowLevelAllocateCallback callback);
// IO
void RawWrite(const char *buffer);
bool PrintsToTty();
+// Caching version of PrintsToTty(). Not thread-safe.
+bool PrintsToTtyCached();
void Printf(const char *format, ...);
void Report(const char *format, ...);
void SetPrintfAndReportCallback(void (*callback)(const char *));
+
// Can be used to prevent mixing error reports from different sanitizers.
extern StaticSpinMutex CommonSanitizerReportMutex;
void MaybeOpenReportFile();
extern fd_t report_fd;
+extern bool log_to_file;
+extern char report_path_prefix[4096];
+extern uptr report_fd_pid;
uptr OpenFile(const char *filename, bool write);
// Opens the file 'file_name" and reads up to 'max_len' bytes.
@@ -128,6 +149,14 @@ uptr ReadFileToBuffer(const char *file_name, char **buff,
// in '*buff_size'.
void *MapFileToMemory(const char *file_name, uptr *buff_size);
+// Error report formatting.
+const char *StripPathPrefix(const char *filepath,
+ const char *strip_file_prefix);
+void PrintSourceLocation(InternalScopedString *buffer, const char *file,
+ int line, int column);
+void PrintModuleAndOffset(InternalScopedString *buffer,
+ const char *module, uptr offset);
+
// OS
void DisableCoreDumper();
void DumpProcessMap();
@@ -135,6 +164,7 @@ bool FileExists(const char *filename);
const char *GetEnv(const char *name);
bool SetEnv(const char *name, const char *value);
const char *GetPwd();
+char *FindPathToBinary(const char *name);
u32 GetUid();
void ReExec();
bool StackSizeIsUnlimited();
@@ -150,11 +180,14 @@ void SleepForMillis(int millis);
u64 NanoTime();
int Atexit(void (*function)(void));
void SortArray(uptr *array, uptr size);
+// Strip the directories from the module name, return a new string allocated
+// with internal_strdup.
+char *StripModuleName(const char *module);
// Exit
void NORETURN Abort();
void NORETURN Die();
-void NORETURN SANITIZER_INTERFACE_ATTRIBUTE
+void NORETURN
CheckFailed(const char *file, int line, const char *cond, u64 v1, u64 v2);
// Set the name of the current thread to 'name', return true on succees.
@@ -166,19 +199,27 @@ bool SanitizerGetThreadName(char *name, int max_len);
// Specific tools may override behavior of "Die" and "CheckFailed" functions
// to do tool-specific job.
-void SetDieCallback(void (*callback)(void));
+typedef void (*DieCallbackType)(void);
+void SetDieCallback(DieCallbackType);
+DieCallbackType GetDieCallback();
typedef void (*CheckFailedCallbackType)(const char *, int, const char *,
u64, u64);
void SetCheckFailedCallback(CheckFailedCallbackType callback);
-// Construct a one-line string like
-// SanitizerToolName: error_type file:line function
-// and call __sanitizer_report_error_summary on it.
+// We don't want a summary too long.
+const int kMaxSummaryLength = 1024;
+// Construct a one-line string:
+// SUMMARY: SanitizerToolName: error_message
+// and pass it to __sanitizer_report_error_summary.
+void ReportErrorSummary(const char *error_message);
+// Same as above, but construct error_message as:
+// error_type: file:line function
void ReportErrorSummary(const char *error_type, const char *file,
int line, const char *function);
+void ReportErrorSummary(const char *error_type, StackTrace *trace);
// Math
-#if SANITIZER_WINDOWS && !defined(__clang__)
+#if SANITIZER_WINDOWS && !defined(__clang__) && !defined(__GNUC__)
extern "C" {
unsigned char _BitScanForward(unsigned long *index, unsigned long mask); // NOLINT
unsigned char _BitScanReverse(unsigned long *index, unsigned long mask); // NOLINT
@@ -192,7 +233,7 @@ unsigned char _BitScanReverse64(unsigned long *index, unsigned __int64 mask); /
INLINE uptr MostSignificantSetBitIndex(uptr x) {
CHECK_NE(x, 0U);
unsigned long up; // NOLINT
-#if !SANITIZER_WINDOWS || defined(__clang__)
+#if !SANITIZER_WINDOWS || defined(__clang__) || defined(__GNUC__)
up = SANITIZER_WORDSIZE - 1 - __builtin_clzl(x);
#elif defined(_WIN64)
_BitScanReverse64(&up, x);
@@ -231,7 +272,7 @@ INLINE bool IsAligned(uptr a, uptr alignment) {
INLINE uptr Log2(uptr x) {
CHECK(IsPowerOfTwo(x));
-#if !SANITIZER_WINDOWS || defined(__clang__)
+#if !SANITIZER_WINDOWS || defined(__clang__) || defined(__GNUC__)
return __builtin_ctzl(x);
#elif defined(_WIN64)
unsigned long ret; // NOLINT
@@ -276,15 +317,15 @@ INLINE int ToLower(int c) {
// small vectors.
// WARNING: The current implementation supports only POD types.
template<typename T>
-class InternalVector {
+class InternalMmapVector {
public:
- explicit InternalVector(uptr initial_capacity) {
+ explicit InternalMmapVector(uptr initial_capacity) {
CHECK_GT(initial_capacity, 0);
capacity_ = initial_capacity;
size_ = 0;
- data_ = (T *)MmapOrDie(capacity_ * sizeof(T), "InternalVector");
+ data_ = (T *)MmapOrDie(capacity_ * sizeof(T), "InternalMmapVector");
}
- ~InternalVector() {
+ ~InternalMmapVector() {
UnmapOrDie(data_, capacity_ * sizeof(T));
}
T &operator[](uptr i) {
@@ -321,12 +362,14 @@ class InternalVector {
return capacity_;
}
+ void clear() { size_ = 0; }
+
private:
void Resize(uptr new_capacity) {
CHECK_GT(new_capacity, 0);
CHECK_LE(size_, new_capacity);
T *new_data = (T *)MmapOrDie(new_capacity * sizeof(T),
- "InternalVector");
+ "InternalMmapVector");
internal_memcpy(new_data, data_, size_ * sizeof(T));
T *old_data = data_;
data_ = new_data;
@@ -334,15 +377,15 @@ class InternalVector {
capacity_ = new_capacity;
}
// Disallow evil constructors.
- InternalVector(const InternalVector&);
- void operator=(const InternalVector&);
+ InternalMmapVector(const InternalMmapVector&);
+ void operator=(const InternalMmapVector&);
T *data_;
uptr capacity_;
uptr size_;
};
-// HeapSort for arrays and InternalVector.
+// HeapSort for arrays and InternalMmapVector.
template<class Container, class Compare>
void InternalSort(Container *v, uptr size, Compare comp) {
if (size < 2)
@@ -379,6 +422,67 @@ void InternalSort(Container *v, uptr size, Compare comp) {
}
}
+template<class Container, class Value, class Compare>
+uptr InternalBinarySearch(const Container &v, uptr first, uptr last,
+ const Value &val, Compare comp) {
+ uptr not_found = last + 1;
+ while (last >= first) {
+ uptr mid = (first + last) / 2;
+ if (comp(v[mid], val))
+ first = mid + 1;
+ else if (comp(val, v[mid]))
+ last = mid - 1;
+ else
+ return mid;
+ }
+ return not_found;
+}
+
+// Represents a binary loaded into virtual memory (e.g. this can be an
+// executable or a shared object).
+class LoadedModule {
+ public:
+ LoadedModule(const char *module_name, uptr base_address);
+ void addAddressRange(uptr beg, uptr end);
+ bool containsAddress(uptr address) const;
+
+ const char *full_name() const { return full_name_; }
+ uptr base_address() const { return base_address_; }
+
+ private:
+ struct AddressRange {
+ uptr beg;
+ uptr end;
+ };
+ char *full_name_;
+ uptr base_address_;
+ static const uptr kMaxNumberOfAddressRanges = 6;
+ AddressRange ranges_[kMaxNumberOfAddressRanges];
+ uptr n_ranges_;
+};
+
+// OS-dependent function that fills array with descriptions of at most
+// "max_modules" currently loaded modules. Returns the number of
+// initialized modules. If filter is nonzero, ignores modules for which
+// filter(full_name) is false.
+typedef bool (*string_predicate_t)(const char *);
+uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
+ string_predicate_t filter);
+
+#if SANITIZER_POSIX
+const uptr kPthreadDestructorIterations = 4;
+#else
+// Unused on Windows.
+const uptr kPthreadDestructorIterations = 0;
+#endif
+
+// Callback type for iterating over a set of memory ranges.
+typedef void (*RangeIteratorCallback)(uptr begin, uptr end, void *arg);
} // namespace __sanitizer
+inline void *operator new(__sanitizer::operator_new_size_type size,
+ __sanitizer::LowLevelAllocator &alloc) {
+ return alloc.Allocate(size);
+}
+
#endif // SANITIZER_COMMON_H
diff --git a/lib/sanitizer_common/sanitizer_common_interceptors.inc b/lib/sanitizer_common/sanitizer_common_interceptors.inc
index 8c0fb55f3ce9..d1c8976781c7 100644
--- a/lib/sanitizer_common/sanitizer_common_interceptors.inc
+++ b/lib/sanitizer_common/sanitizer_common_interceptors.inc
@@ -15,9 +15,16 @@
// COMMON_INTERCEPTOR_ENTER
// COMMON_INTERCEPTOR_READ_RANGE
// COMMON_INTERCEPTOR_WRITE_RANGE
+// COMMON_INTERCEPTOR_INITIALIZE_RANGE
// COMMON_INTERCEPTOR_FD_ACQUIRE
// COMMON_INTERCEPTOR_FD_RELEASE
+// COMMON_INTERCEPTOR_FD_ACCESS
// COMMON_INTERCEPTOR_SET_THREAD_NAME
+// COMMON_INTERCEPTOR_ON_EXIT
+// COMMON_INTERCEPTOR_MUTEX_LOCK
+// COMMON_INTERCEPTOR_MUTEX_UNLOCK
+// COMMON_INTERCEPTOR_MUTEX_REPAIR
+// COMMON_INTERCEPTOR_SET_PTHREAD_NAME
//===----------------------------------------------------------------------===//
#include "interception/interception.h"
#include "sanitizer_platform_interceptors.h"
@@ -28,6 +35,68 @@
#define va_copy(dst, src) ((dst) = (src))
#endif // _WIN32
+#ifndef COMMON_INTERCEPTOR_INITIALIZE_RANGE
+#define COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, p, size) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_FD_ACCESS
+#define COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_MUTEX_LOCK
+#define COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_MUTEX_UNLOCK
+#define COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_MUTEX_REPAIR
+#define COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m) {}
+#endif
+
+#if SANITIZER_INTERCEPT_STRCMP
+static inline int CharCmpX(unsigned char c1, unsigned char c2) {
+ return (c1 == c2) ? 0 : (c1 < c2) ? -1 : 1;
+}
+
+INTERCEPTOR(int, strcmp, const char *s1, const char *s2) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strcmp, s1, s2);
+ unsigned char c1, c2;
+ uptr i;
+ for (i = 0;; i++) {
+ c1 = (unsigned char)s1[i];
+ c2 = (unsigned char)s2[i];
+ if (c1 != c2 || c1 == '\0') break;
+ }
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, i + 1);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, i + 1);
+ return CharCmpX(c1, c2);
+}
+
+INTERCEPTOR(int, strncmp, const char *s1, const char *s2, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strncmp, s1, s2, size);
+ unsigned char c1 = 0, c2 = 0;
+ uptr i;
+ for (i = 0; i < size; i++) {
+ c1 = (unsigned char)s1[i];
+ c2 = (unsigned char)s2[i];
+ if (c1 != c2 || c1 == '\0') break;
+ }
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, size));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, size));
+ return CharCmpX(c1, c2);
+}
+
+#define INIT_STRCMP COMMON_INTERCEPT_FUNCTION(strcmp)
+#define INIT_STRNCMP COMMON_INTERCEPT_FUNCTION(strncmp)
+#else
+#define INIT_STRCMP
+#define INIT_STRNCMP
+#endif
+
#if SANITIZER_INTERCEPT_STRCASECMP
static inline int CharCaseCmp(unsigned char c1, unsigned char c2) {
int c1_low = ToLower(c1);
@@ -40,11 +109,10 @@ INTERCEPTOR(int, strcasecmp, const char *s1, const char *s2) {
COMMON_INTERCEPTOR_ENTER(ctx, strcasecmp, s1, s2);
unsigned char c1 = 0, c2 = 0;
uptr i;
- for (i = 0; ; i++) {
+ for (i = 0;; i++) {
c1 = (unsigned char)s1[i];
c2 = (unsigned char)s2[i];
- if (CharCaseCmp(c1, c2) != 0 || c1 == '\0')
- break;
+ if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break;
}
COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, i + 1);
COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, i + 1);
@@ -59,16 +127,15 @@ INTERCEPTOR(int, strncasecmp, const char *s1, const char *s2, SIZE_T n) {
for (i = 0; i < n; i++) {
c1 = (unsigned char)s1[i];
c2 = (unsigned char)s2[i];
- if (CharCaseCmp(c1, c2) != 0 || c1 == '\0')
- break;
+ if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break;
}
COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, n));
COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, n));
return CharCaseCmp(c1, c2);
}
-#define INIT_STRCASECMP INTERCEPT_FUNCTION(strcasecmp)
-#define INIT_STRNCASECMP INTERCEPT_FUNCTION(strncasecmp)
+#define INIT_STRCASECMP COMMON_INTERCEPT_FUNCTION(strcasecmp)
+#define INIT_STRNCASECMP COMMON_INTERCEPT_FUNCTION(strncasecmp)
#else
#define INIT_STRCASECMP
#define INIT_STRNCASECMP
@@ -83,10 +150,10 @@ INTERCEPTOR(double, frexp, double x, int *exp) {
return res;
}
-#define INIT_FREXP INTERCEPT_FUNCTION(frexp);
+#define INIT_FREXP COMMON_INTERCEPT_FUNCTION(frexp);
#else
#define INIT_FREXP
-#endif // SANITIZER_INTERCEPT_FREXP
+#endif // SANITIZER_INTERCEPT_FREXP
#if SANITIZER_INTERCEPT_FREXPF_FREXPL
INTERCEPTOR(float, frexpf, float x, int *exp) {
@@ -105,25 +172,45 @@ INTERCEPTOR(long double, frexpl, long double x, int *exp) {
return res;
}
-#define INIT_FREXPF_FREXPL \
- INTERCEPT_FUNCTION(frexpf); \
- INTERCEPT_FUNCTION(frexpl)
+#define INIT_FREXPF_FREXPL \
+ COMMON_INTERCEPT_FUNCTION(frexpf); \
+ COMMON_INTERCEPT_FUNCTION(frexpl)
#else
#define INIT_FREXPF_FREXPL
-#endif // SANITIZER_INTERCEPT_FREXPF_FREXPL
+#endif // SANITIZER_INTERCEPT_FREXPF_FREXPL
+
+#if SI_NOT_WINDOWS
+static void write_iovec(void *ctx, struct __sanitizer_iovec *iovec,
+ SIZE_T iovlen, SIZE_T maxlen) {
+ for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
+ SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iovec[i].iov_base, sz);
+ maxlen -= sz;
+ }
+}
+
+static void read_iovec(void *ctx, struct __sanitizer_iovec *iovec,
+ SIZE_T iovlen, SIZE_T maxlen) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec, sizeof(*iovec) * iovlen);
+ for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
+ SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec[i].iov_base, sz);
+ maxlen -= sz;
+ }
+}
+#endif
#if SANITIZER_INTERCEPT_READ
INTERCEPTOR(SSIZE_T, read, int fd, void *ptr, SIZE_T count) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, read, fd, ptr, count);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
SSIZE_T res = REAL(read)(fd, ptr, count);
- if (res > 0)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
- if (res >= 0 && fd >= 0)
- COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
+ if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
return res;
}
-#define INIT_READ INTERCEPT_FUNCTION(read)
+#define INIT_READ COMMON_INTERCEPT_FUNCTION(read)
#else
#define INIT_READ
#endif
@@ -132,14 +219,13 @@ INTERCEPTOR(SSIZE_T, read, int fd, void *ptr, SIZE_T count) {
INTERCEPTOR(SSIZE_T, pread, int fd, void *ptr, SIZE_T count, OFF_T offset) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pread, fd, ptr, count, offset);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
SSIZE_T res = REAL(pread)(fd, ptr, count, offset);
- if (res > 0)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
- if (res >= 0 && fd >= 0)
- COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
+ if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
return res;
}
-#define INIT_PREAD INTERCEPT_FUNCTION(pread)
+#define INIT_PREAD COMMON_INTERCEPT_FUNCTION(pread)
#else
#define INIT_PREAD
#endif
@@ -148,30 +234,77 @@ INTERCEPTOR(SSIZE_T, pread, int fd, void *ptr, SIZE_T count, OFF_T offset) {
INTERCEPTOR(SSIZE_T, pread64, int fd, void *ptr, SIZE_T count, OFF64_T offset) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pread64, fd, ptr, count, offset);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
SSIZE_T res = REAL(pread64)(fd, ptr, count, offset);
- if (res > 0)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
- if (res >= 0 && fd >= 0)
- COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
+ if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
return res;
}
-#define INIT_PREAD64 INTERCEPT_FUNCTION(pread64)
+#define INIT_PREAD64 COMMON_INTERCEPT_FUNCTION(pread64)
#else
#define INIT_PREAD64
#endif
+#if SANITIZER_INTERCEPT_READV
+INTERCEPTOR_WITH_SUFFIX(SSIZE_T, readv, int fd, __sanitizer_iovec *iov,
+ int iovcnt) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, readv, fd, iov, iovcnt);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ SSIZE_T res = REAL(readv)(fd, iov, iovcnt);
+ if (res > 0) write_iovec(ctx, iov, iovcnt, res);
+ if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ return res;
+}
+#define INIT_READV COMMON_INTERCEPT_FUNCTION(readv)
+#else
+#define INIT_READV
+#endif
+
+#if SANITIZER_INTERCEPT_PREADV
+INTERCEPTOR(SSIZE_T, preadv, int fd, __sanitizer_iovec *iov, int iovcnt,
+ OFF_T offset) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, preadv, fd, iov, iovcnt, offset);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ SSIZE_T res = REAL(preadv)(fd, iov, iovcnt, offset);
+ if (res > 0) write_iovec(ctx, iov, iovcnt, res);
+ if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ return res;
+}
+#define INIT_PREADV COMMON_INTERCEPT_FUNCTION(preadv)
+#else
+#define INIT_PREADV
+#endif
+
+#if SANITIZER_INTERCEPT_PREADV64
+INTERCEPTOR(SSIZE_T, preadv64, int fd, __sanitizer_iovec *iov, int iovcnt,
+ OFF64_T offset) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, preadv64, fd, iov, iovcnt, offset);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ SSIZE_T res = REAL(preadv64)(fd, iov, iovcnt, offset);
+ if (res > 0) write_iovec(ctx, iov, iovcnt, res);
+ if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ return res;
+}
+#define INIT_PREADV64 COMMON_INTERCEPT_FUNCTION(preadv64)
+#else
+#define INIT_PREADV64
+#endif
+
#if SANITIZER_INTERCEPT_WRITE
INTERCEPTOR(SSIZE_T, write, int fd, void *ptr, SIZE_T count) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, write, fd, ptr, count);
- if (fd >= 0)
- COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
SSIZE_T res = REAL(write)(fd, ptr, count);
- if (res > 0)
- COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
+ // FIXME: this check should be _before_ the call to REAL(write), not after
+ if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
return res;
}
-#define INIT_WRITE INTERCEPT_FUNCTION(write)
+#define INIT_WRITE COMMON_INTERCEPT_FUNCTION(write)
#else
#define INIT_WRITE
#endif
@@ -180,14 +313,13 @@ INTERCEPTOR(SSIZE_T, write, int fd, void *ptr, SIZE_T count) {
INTERCEPTOR(SSIZE_T, pwrite, int fd, void *ptr, SIZE_T count, OFF_T offset) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pwrite, fd, ptr, count, offset);
- if (fd >= 0)
- COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
SSIZE_T res = REAL(pwrite)(fd, ptr, count, offset);
- if (res > 0)
- COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
+ if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
return res;
}
-#define INIT_PWRITE INTERCEPT_FUNCTION(pwrite)
+#define INIT_PWRITE COMMON_INTERCEPT_FUNCTION(pwrite)
#else
#define INIT_PWRITE
#endif
@@ -197,22 +329,69 @@ INTERCEPTOR(SSIZE_T, pwrite64, int fd, void *ptr, OFF64_T count,
OFF64_T offset) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pwrite64, fd, ptr, count, offset);
- if (fd >= 0)
- COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
SSIZE_T res = REAL(pwrite64)(fd, ptr, count, offset);
- if (res > 0)
- COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
+ if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
return res;
}
-#define INIT_PWRITE64 INTERCEPT_FUNCTION(pwrite64)
+#define INIT_PWRITE64 COMMON_INTERCEPT_FUNCTION(pwrite64)
#else
#define INIT_PWRITE64
#endif
+#if SANITIZER_INTERCEPT_WRITEV
+INTERCEPTOR_WITH_SUFFIX(SSIZE_T, writev, int fd, __sanitizer_iovec *iov,
+ int iovcnt) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, writev, fd, iov, iovcnt);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ SSIZE_T res = REAL(writev)(fd, iov, iovcnt);
+ if (res > 0) read_iovec(ctx, iov, iovcnt, res);
+ return res;
+}
+#define INIT_WRITEV COMMON_INTERCEPT_FUNCTION(writev)
+#else
+#define INIT_WRITEV
+#endif
+
+#if SANITIZER_INTERCEPT_PWRITEV
+INTERCEPTOR(SSIZE_T, pwritev, int fd, __sanitizer_iovec *iov, int iovcnt,
+ OFF_T offset) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pwritev, fd, iov, iovcnt, offset);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ SSIZE_T res = REAL(pwritev)(fd, iov, iovcnt, offset);
+ if (res > 0) read_iovec(ctx, iov, iovcnt, res);
+ return res;
+}
+#define INIT_PWRITEV COMMON_INTERCEPT_FUNCTION(pwritev)
+#else
+#define INIT_PWRITEV
+#endif
+
+#if SANITIZER_INTERCEPT_PWRITEV64
+INTERCEPTOR(SSIZE_T, pwritev64, int fd, __sanitizer_iovec *iov, int iovcnt,
+ OFF64_T offset) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pwritev64, fd, iov, iovcnt, offset);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ SSIZE_T res = REAL(pwritev64)(fd, iov, iovcnt, offset);
+ if (res > 0) read_iovec(ctx, iov, iovcnt, res);
+ return res;
+}
+#define INIT_PWRITEV64 COMMON_INTERCEPT_FUNCTION(pwritev64)
+#else
+#define INIT_PWRITEV64
+#endif
+
#if SANITIZER_INTERCEPT_PRCTL
-INTERCEPTOR(int, prctl, int option,
- unsigned long arg2, unsigned long arg3, // NOLINT
- unsigned long arg4, unsigned long arg5) { // NOLINT
+INTERCEPTOR(int, prctl, int option, unsigned long arg2,
+ unsigned long arg3, // NOLINT
+ unsigned long arg4, unsigned long arg5) { // NOLINT
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, prctl, option, arg2, arg3, arg4, arg5);
static const int PR_SET_NAME = 15;
@@ -225,11 +404,10 @@ INTERCEPTOR(int, prctl, int option,
}
return res;
}
-#define INIT_PRCTL INTERCEPT_FUNCTION(prctl)
+#define INIT_PRCTL COMMON_INTERCEPT_FUNCTION(prctl)
#else
#define INIT_PRCTL
-#endif // SANITIZER_INTERCEPT_PRCTL
-
+#endif // SANITIZER_INTERCEPT_PRCTL
#if SANITIZER_INTERCEPT_TIME
INTERCEPTOR(unsigned long, time, unsigned long *t) {
@@ -241,51 +419,58 @@ INTERCEPTOR(unsigned long, time, unsigned long *t) {
}
return res;
}
-#define INIT_TIME \
- INTERCEPT_FUNCTION(time);
+#define INIT_TIME COMMON_INTERCEPT_FUNCTION(time);
#else
#define INIT_TIME
-#endif // SANITIZER_INTERCEPT_TIME
-
+#endif // SANITIZER_INTERCEPT_TIME
#if SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS
-INTERCEPTOR(void *, localtime, unsigned long *timep) {
+static void unpoison_tm(void *ctx, __sanitizer_tm *tm) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm));
+ if (tm->tm_zone) {
+ // Can not use COMMON_INTERCEPTOR_WRITE_RANGE here, because tm->tm_zone
+ // can point to shared memory and tsan would report a data race.
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, tm->tm_zone,
+ REAL(strlen(tm->tm_zone)) + 1);
+ }
+}
+INTERCEPTOR(__sanitizer_tm *, localtime, unsigned long *timep) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, localtime, timep);
- void *res = REAL(localtime)(timep);
+ __sanitizer_tm *res = REAL(localtime)(timep);
if (res) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_tm_sz);
+ unpoison_tm(ctx, res);
}
return res;
}
-INTERCEPTOR(void *, localtime_r, unsigned long *timep, void *result) {
+INTERCEPTOR(__sanitizer_tm *, localtime_r, unsigned long *timep, void *result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, localtime_r, timep, result);
- void *res = REAL(localtime_r)(timep, result);
+ __sanitizer_tm *res = REAL(localtime_r)(timep, result);
if (res) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_tm_sz);
+ unpoison_tm(ctx, res);
}
return res;
}
-INTERCEPTOR(void *, gmtime, unsigned long *timep) {
+INTERCEPTOR(__sanitizer_tm *, gmtime, unsigned long *timep) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, gmtime, timep);
- void *res = REAL(gmtime)(timep);
+ __sanitizer_tm *res = REAL(gmtime)(timep);
if (res) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_tm_sz);
+ unpoison_tm(ctx, res);
}
return res;
}
-INTERCEPTOR(void *, gmtime_r, unsigned long *timep, void *result) {
+INTERCEPTOR(__sanitizer_tm *, gmtime_r, unsigned long *timep, void *result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, gmtime_r, timep, result);
- void *res = REAL(gmtime_r)(timep, result);
+ __sanitizer_tm *res = REAL(gmtime_r)(timep, result);
if (res) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_tm_sz);
+ unpoison_tm(ctx, res);
}
return res;
}
@@ -309,38 +494,59 @@ INTERCEPTOR(char *, ctime_r, unsigned long *timep, char *result) {
}
return res;
}
-INTERCEPTOR(char *, asctime, void *tm) {
+INTERCEPTOR(char *, asctime, __sanitizer_tm *tm) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, asctime, tm);
char *res = REAL(asctime)(tm);
if (res) {
- COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, struct_tm_sz);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm));
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
}
return res;
}
-INTERCEPTOR(char *, asctime_r, void *tm, char *result) {
+INTERCEPTOR(char *, asctime_r, __sanitizer_tm *tm, char *result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, asctime_r, tm, result);
char *res = REAL(asctime_r)(tm, result);
if (res) {
- COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, struct_tm_sz);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm));
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
}
return res;
}
-#define INIT_LOCALTIME_AND_FRIENDS \
- INTERCEPT_FUNCTION(localtime); \
- INTERCEPT_FUNCTION(localtime_r); \
- INTERCEPT_FUNCTION(gmtime); \
- INTERCEPT_FUNCTION(gmtime_r); \
- INTERCEPT_FUNCTION(ctime); \
- INTERCEPT_FUNCTION(ctime_r); \
- INTERCEPT_FUNCTION(asctime); \
- INTERCEPT_FUNCTION(asctime_r);
+#define INIT_LOCALTIME_AND_FRIENDS \
+ COMMON_INTERCEPT_FUNCTION(localtime); \
+ COMMON_INTERCEPT_FUNCTION(localtime_r); \
+ COMMON_INTERCEPT_FUNCTION(gmtime); \
+ COMMON_INTERCEPT_FUNCTION(gmtime_r); \
+ COMMON_INTERCEPT_FUNCTION(ctime); \
+ COMMON_INTERCEPT_FUNCTION(ctime_r); \
+ COMMON_INTERCEPT_FUNCTION(asctime); \
+ COMMON_INTERCEPT_FUNCTION(asctime_r);
#else
#define INIT_LOCALTIME_AND_FRIENDS
-#endif // SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS
+#endif // SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS
+
+#if SANITIZER_INTERCEPT_STRPTIME
+INTERCEPTOR(char *, strptime, char *s, char *format, __sanitizer_tm *tm) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strptime, s, format, tm);
+ if (format)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, format, REAL(strlen)(format) + 1);
+ char *res = REAL(strptime)(s, format, tm);
+ if (res) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, res - s);
+ // Do not call unpoison_tm here, because strptime does not, in fact,
+ // initialize the entire struct tm. For example, tm_zone pointer is left
+ // uninitialized.
+ if (tm) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm));
+ }
+ return res;
+}
+#define INIT_STRPTIME COMMON_INTERCEPT_FUNCTION(strptime);
+#else
+#define INIT_STRPTIME
+#endif
#if SANITIZER_INTERCEPT_SCANF
@@ -383,9 +589,9 @@ VSCANF_INTERCEPTOR_IMPL(__isoc99_vfscanf, false, stream, format, ap)
#define SCANF_INTERCEPTOR_IMPL(name, vname, ...) \
{ \
void *ctx; \
- COMMON_INTERCEPTOR_ENTER(ctx, name, __VA_ARGS__); \
va_list ap; \
va_start(ap, format); \
+ COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__, ap); \
int res = vname(__VA_ARGS__, ap); \
va_end(ap); \
return res; \
@@ -411,40 +617,74 @@ INTERCEPTOR(int, __isoc99_sscanf, const char *str, const char *format, ...)
SCANF_INTERCEPTOR_IMPL(__isoc99_sscanf, __isoc99_vsscanf, str, format)
#endif
-#define INIT_SCANF \
- INTERCEPT_FUNCTION(scanf); \
- INTERCEPT_FUNCTION(sscanf); \
- INTERCEPT_FUNCTION(fscanf); \
- INTERCEPT_FUNCTION(vscanf); \
- INTERCEPT_FUNCTION(vsscanf); \
- INTERCEPT_FUNCTION(vfscanf); \
- INTERCEPT_FUNCTION(__isoc99_scanf); \
- INTERCEPT_FUNCTION(__isoc99_sscanf); \
- INTERCEPT_FUNCTION(__isoc99_fscanf); \
- INTERCEPT_FUNCTION(__isoc99_vscanf); \
- INTERCEPT_FUNCTION(__isoc99_vsscanf); \
- INTERCEPT_FUNCTION(__isoc99_vfscanf);
+#endif
+#if SANITIZER_INTERCEPT_SCANF
+#define INIT_SCANF \
+ COMMON_INTERCEPT_FUNCTION(scanf); \
+ COMMON_INTERCEPT_FUNCTION(sscanf); \
+ COMMON_INTERCEPT_FUNCTION(fscanf); \
+ COMMON_INTERCEPT_FUNCTION(vscanf); \
+ COMMON_INTERCEPT_FUNCTION(vsscanf); \
+ COMMON_INTERCEPT_FUNCTION(vfscanf);
#else
#define INIT_SCANF
#endif
+#if SANITIZER_INTERCEPT_ISOC99_SCANF
+#define INIT_ISOC99_SCANF \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_scanf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_sscanf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_fscanf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_vscanf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_vsscanf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_vfscanf);
+#else
+#define INIT_ISOC99_SCANF
+#endif
+
+#if SANITIZER_INTERCEPT_IOCTL
+#include "sanitizer_common_interceptors_ioctl.inc"
+INTERCEPTOR(int, ioctl, int d, unsigned request, void *arg) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ioctl, d, request, arg);
+
+ CHECK(ioctl_initialized);
+
+ // Note: TSan does not use common flags, and they are zero-initialized.
+ // This effectively disables ioctl handling in TSan.
+ if (!common_flags()->handle_ioctl) return REAL(ioctl)(d, request, arg);
+
+ const ioctl_desc *desc = ioctl_lookup(request);
+ if (!desc) Printf("WARNING: unknown ioctl %x\n", request);
+
+ if (desc) ioctl_common_pre(ctx, desc, d, request, arg);
+ int res = REAL(ioctl)(d, request, arg);
+ // FIXME: some ioctls have different return values for success and failure.
+ if (desc && res != -1) ioctl_common_post(ctx, desc, res, d, request, arg);
+ return res;
+}
+#define INIT_IOCTL \
+ ioctl_init(); \
+ COMMON_INTERCEPT_FUNCTION(ioctl);
+#else
+#define INIT_IOCTL
+#endif
+
#if SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS
INTERCEPTOR(void *, getpwnam, const char *name) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getpwnam, name);
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
void *res = REAL(getpwnam)(name);
- if (res != 0)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_passwd_sz);
+ if (res != 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_passwd_sz);
return res;
}
INTERCEPTOR(void *, getpwuid, u32 uid) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getpwuid, uid);
void *res = REAL(getpwuid)(uid);
- if (res != 0)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_passwd_sz);
+ if (res != 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_passwd_sz);
return res;
}
INTERCEPTOR(void *, getgrnam, const char *name) {
@@ -452,31 +692,28 @@ INTERCEPTOR(void *, getgrnam, const char *name) {
COMMON_INTERCEPTOR_ENTER(ctx, getgrnam, name);
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
void *res = REAL(getgrnam)(name);
- if (res != 0)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_group_sz);
+ if (res != 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_group_sz);
return res;
}
INTERCEPTOR(void *, getgrgid, u32 gid) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getgrgid, gid);
void *res = REAL(getgrgid)(gid);
- if (res != 0)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_group_sz);
+ if (res != 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_group_sz);
return res;
}
-#define INIT_GETPWNAM_AND_FRIENDS \
- INTERCEPT_FUNCTION(getpwnam); \
- INTERCEPT_FUNCTION(getpwuid); \
- INTERCEPT_FUNCTION(getgrnam); \
- INTERCEPT_FUNCTION(getgrgid);
+#define INIT_GETPWNAM_AND_FRIENDS \
+ COMMON_INTERCEPT_FUNCTION(getpwnam); \
+ COMMON_INTERCEPT_FUNCTION(getpwuid); \
+ COMMON_INTERCEPT_FUNCTION(getgrnam); \
+ COMMON_INTERCEPT_FUNCTION(getgrgid);
#else
#define INIT_GETPWNAM_AND_FRIENDS
#endif
-
#if SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS
-INTERCEPTOR(int, getpwnam_r, const char *name, void *pwd,
- char *buf, SIZE_T buflen, void **result) {
+INTERCEPTOR(int, getpwnam_r, const char *name, void *pwd, char *buf,
+ SIZE_T buflen, void **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getpwnam_r, name, pwd, buf, buflen, result);
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
@@ -487,8 +724,8 @@ INTERCEPTOR(int, getpwnam_r, const char *name, void *pwd,
}
return res;
}
-INTERCEPTOR(int, getpwuid_r, u32 uid, void *pwd,
- char *buf, SIZE_T buflen, void **result) {
+INTERCEPTOR(int, getpwuid_r, u32 uid, void *pwd, char *buf, SIZE_T buflen,
+ void **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getpwuid_r, uid, pwd, buf, buflen, result);
int res = REAL(getpwuid_r)(uid, pwd, buf, buflen, result);
@@ -498,8 +735,8 @@ INTERCEPTOR(int, getpwuid_r, u32 uid, void *pwd,
}
return res;
}
-INTERCEPTOR(int, getgrnam_r, const char *name, void *grp,
- char *buf, SIZE_T buflen, void **result) {
+INTERCEPTOR(int, getgrnam_r, const char *name, void *grp, char *buf,
+ SIZE_T buflen, void **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getgrnam_r, name, grp, buf, buflen, result);
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
@@ -510,8 +747,8 @@ INTERCEPTOR(int, getgrnam_r, const char *name, void *grp,
}
return res;
}
-INTERCEPTOR(int, getgrgid_r, u32 gid, void *grp,
- char *buf, SIZE_T buflen, void **result) {
+INTERCEPTOR(int, getgrgid_r, u32 gid, void *grp, char *buf, SIZE_T buflen,
+ void **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getgrgid_r, gid, grp, buf, buflen, result);
int res = REAL(getgrgid_r)(gid, grp, buf, buflen, result);
@@ -521,16 +758,15 @@ INTERCEPTOR(int, getgrgid_r, u32 gid, void *grp,
}
return res;
}
-#define INIT_GETPWNAM_R_AND_FRIENDS \
- INTERCEPT_FUNCTION(getpwnam_r); \
- INTERCEPT_FUNCTION(getpwuid_r); \
- INTERCEPT_FUNCTION(getgrnam_r); \
- INTERCEPT_FUNCTION(getgrgid_r);
+#define INIT_GETPWNAM_R_AND_FRIENDS \
+ COMMON_INTERCEPT_FUNCTION(getpwnam_r); \
+ COMMON_INTERCEPT_FUNCTION(getpwuid_r); \
+ COMMON_INTERCEPT_FUNCTION(getgrnam_r); \
+ COMMON_INTERCEPT_FUNCTION(getgrgid_r);
#else
#define INIT_GETPWNAM_R_AND_FRIENDS
#endif
-
#if SANITIZER_INTERCEPT_CLOCK_GETTIME
INTERCEPTOR(int, clock_getres, u32 clk_id, void *tp) {
void *ctx;
@@ -556,21 +792,20 @@ INTERCEPTOR(int, clock_settime, u32 clk_id, const void *tp) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, tp, struct_timespec_sz);
return REAL(clock_settime)(clk_id, tp);
}
-#define INIT_CLOCK_GETTIME \
- INTERCEPT_FUNCTION(clock_getres); \
- INTERCEPT_FUNCTION(clock_gettime); \
- INTERCEPT_FUNCTION(clock_settime);
+#define INIT_CLOCK_GETTIME \
+ COMMON_INTERCEPT_FUNCTION(clock_getres); \
+ COMMON_INTERCEPT_FUNCTION(clock_gettime); \
+ COMMON_INTERCEPT_FUNCTION(clock_settime);
#else
#define INIT_CLOCK_GETTIME
#endif
-
#if SANITIZER_INTERCEPT_GETITIMER
INTERCEPTOR(int, getitimer, int which, void *curr_value) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getitimer, which, curr_value);
int res = REAL(getitimer)(which, curr_value);
- if (!res) {
+ if (!res && curr_value) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerval_sz);
}
return res;
@@ -578,66 +813,134 @@ INTERCEPTOR(int, getitimer, int which, void *curr_value) {
INTERCEPTOR(int, setitimer, int which, const void *new_value, void *old_value) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, setitimer, which, new_value, old_value);
- COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerval_sz);
+ if (new_value)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerval_sz);
int res = REAL(setitimer)(which, new_value, old_value);
if (!res && old_value) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerval_sz);
}
return res;
}
-#define INIT_GETITIMER \
- INTERCEPT_FUNCTION(getitimer); \
- INTERCEPT_FUNCTION(setitimer);
+#define INIT_GETITIMER \
+ COMMON_INTERCEPT_FUNCTION(getitimer); \
+ COMMON_INTERCEPT_FUNCTION(setitimer);
#else
#define INIT_GETITIMER
#endif
-
#if SANITIZER_INTERCEPT_GLOB
-struct sanitizer_glob_t {
- SIZE_T gl_pathc;
- char **gl_pathv;
-};
-
-static void unpoison_glob_t(void *ctx, sanitizer_glob_t *pglob) {
+static void unpoison_glob_t(void *ctx, __sanitizer_glob_t *pglob) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pglob, sizeof(*pglob));
// +1 for NULL pointer at the end.
- COMMON_INTERCEPTOR_WRITE_RANGE(
- ctx, pglob->gl_pathv, (pglob->gl_pathc + 1) * sizeof(*pglob->gl_pathv));
+ if (pglob->gl_pathv)
+ COMMON_INTERCEPTOR_WRITE_RANGE(
+ ctx, pglob->gl_pathv, (pglob->gl_pathc + 1) * sizeof(*pglob->gl_pathv));
for (SIZE_T i = 0; i < pglob->gl_pathc; ++i) {
char *p = pglob->gl_pathv[i];
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, REAL(strlen)(p) + 1);
}
}
+static THREADLOCAL __sanitizer_glob_t *pglob_copy;
+static THREADLOCAL void *glob_ctx;
+
+static void wrapped_gl_closedir(void *dir) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 1);
+ pglob_copy->gl_closedir(dir);
+}
+
+static void *wrapped_gl_readdir(void *dir) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 1);
+ return pglob_copy->gl_readdir(dir);
+}
+
+static void *wrapped_gl_opendir(const char *s) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 1);
+ COMMON_INTERCEPTOR_WRITE_RANGE(glob_ctx, s, REAL(strlen)(s) + 1);
+ return pglob_copy->gl_opendir(s);
+}
+
+static int wrapped_gl_lstat(const char *s, void *st) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 2);
+ COMMON_INTERCEPTOR_WRITE_RANGE(glob_ctx, s, REAL(strlen)(s) + 1);
+ return pglob_copy->gl_lstat(s, st);
+}
+
+static int wrapped_gl_stat(const char *s, void *st) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 2);
+ COMMON_INTERCEPTOR_WRITE_RANGE(glob_ctx, s, REAL(strlen)(s) + 1);
+ return pglob_copy->gl_stat(s, st);
+}
+
INTERCEPTOR(int, glob, const char *pattern, int flags,
int (*errfunc)(const char *epath, int eerrno),
- sanitizer_glob_t *pglob) {
+ __sanitizer_glob_t *pglob) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, glob, pattern, flags, errfunc, pglob);
+ __sanitizer_glob_t glob_copy = {
+ 0, 0, 0,
+ 0, wrapped_gl_closedir, wrapped_gl_readdir,
+ wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat};
+ if (flags & glob_altdirfunc) {
+ Swap(pglob->gl_closedir, glob_copy.gl_closedir);
+ Swap(pglob->gl_readdir, glob_copy.gl_readdir);
+ Swap(pglob->gl_opendir, glob_copy.gl_opendir);
+ Swap(pglob->gl_lstat, glob_copy.gl_lstat);
+ Swap(pglob->gl_stat, glob_copy.gl_stat);
+ pglob_copy = &glob_copy;
+ glob_ctx = ctx;
+ }
int res = REAL(glob)(pattern, flags, errfunc, pglob);
- if (res == 0)
- unpoison_glob_t(ctx, pglob);
+ if (flags & glob_altdirfunc) {
+ Swap(pglob->gl_closedir, glob_copy.gl_closedir);
+ Swap(pglob->gl_readdir, glob_copy.gl_readdir);
+ Swap(pglob->gl_opendir, glob_copy.gl_opendir);
+ Swap(pglob->gl_lstat, glob_copy.gl_lstat);
+ Swap(pglob->gl_stat, glob_copy.gl_stat);
+ }
+ pglob_copy = 0;
+ glob_ctx = 0;
+ if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob);
return res;
}
INTERCEPTOR(int, glob64, const char *pattern, int flags,
int (*errfunc)(const char *epath, int eerrno),
- sanitizer_glob_t *pglob) {
+ __sanitizer_glob_t *pglob) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, glob64, pattern, flags, errfunc, pglob);
+ __sanitizer_glob_t glob_copy = {
+ 0, 0, 0,
+ 0, wrapped_gl_closedir, wrapped_gl_readdir,
+ wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat};
+ if (flags & glob_altdirfunc) {
+ Swap(pglob->gl_closedir, glob_copy.gl_closedir);
+ Swap(pglob->gl_readdir, glob_copy.gl_readdir);
+ Swap(pglob->gl_opendir, glob_copy.gl_opendir);
+ Swap(pglob->gl_lstat, glob_copy.gl_lstat);
+ Swap(pglob->gl_stat, glob_copy.gl_stat);
+ pglob_copy = &glob_copy;
+ glob_ctx = ctx;
+ }
int res = REAL(glob64)(pattern, flags, errfunc, pglob);
- if (res == 0)
- unpoison_glob_t(ctx, pglob);
+ if (flags & glob_altdirfunc) {
+ Swap(pglob->gl_closedir, glob_copy.gl_closedir);
+ Swap(pglob->gl_readdir, glob_copy.gl_readdir);
+ Swap(pglob->gl_opendir, glob_copy.gl_opendir);
+ Swap(pglob->gl_lstat, glob_copy.gl_lstat);
+ Swap(pglob->gl_stat, glob_copy.gl_stat);
+ }
+ pglob_copy = 0;
+ glob_ctx = 0;
+ if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob);
return res;
}
-#define INIT_GLOB \
- INTERCEPT_FUNCTION(glob); \
- INTERCEPT_FUNCTION(glob64);
-#else // SANITIZER_INTERCEPT_GLOB
+#define INIT_GLOB \
+ COMMON_INTERCEPT_FUNCTION(glob); \
+ COMMON_INTERCEPT_FUNCTION(glob64);
+#else // SANITIZER_INTERCEPT_GLOB
#define INIT_GLOB
-#endif // SANITIZER_INTERCEPT_GLOB
-
+#endif // SANITIZER_INTERCEPT_GLOB
#if SANITIZER_INTERCEPT_WAIT
// According to sys/wait.h, wait(), waitid(), waitpid() may have symbol version
@@ -652,7 +955,7 @@ INTERCEPTOR_WITH_SUFFIX(int, wait, int *status) {
return res;
}
INTERCEPTOR_WITH_SUFFIX(int, waitid, int idtype, int id, void *infop,
- int options) {
+ int options) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, waitid, idtype, id, infop, options);
int res = REAL(waitid)(idtype, id, infop, options);
@@ -673,10 +976,8 @@ INTERCEPTOR(int, wait3, int *status, int options, void *rusage) {
COMMON_INTERCEPTOR_ENTER(ctx, wait3, status, options, rusage);
int res = REAL(wait3)(status, options, rusage);
if (res != -1) {
- if (status)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
- if (rusage)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
+ if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
+ if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
}
return res;
}
@@ -685,19 +986,17 @@ INTERCEPTOR(int, wait4, int pid, int *status, int options, void *rusage) {
COMMON_INTERCEPTOR_ENTER(ctx, wait4, pid, status, options, rusage);
int res = REAL(wait4)(pid, status, options, rusage);
if (res != -1) {
- if (status)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
- if (rusage)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
+ if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
+ if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
}
return res;
}
-#define INIT_WAIT \
- INTERCEPT_FUNCTION(wait); \
- INTERCEPT_FUNCTION(waitid); \
- INTERCEPT_FUNCTION(waitpid); \
- INTERCEPT_FUNCTION(wait3); \
- INTERCEPT_FUNCTION(wait4);
+#define INIT_WAIT \
+ COMMON_INTERCEPT_FUNCTION(wait); \
+ COMMON_INTERCEPT_FUNCTION(waitid); \
+ COMMON_INTERCEPT_FUNCTION(waitpid); \
+ COMMON_INTERCEPT_FUNCTION(wait3); \
+ COMMON_INTERCEPT_FUNCTION(wait4);
#else
#define INIT_WAIT
#endif
@@ -710,8 +1009,7 @@ INTERCEPTOR(char *, inet_ntop, int af, const void *src, char *dst, u32 size) {
if (sz) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sz);
// FIXME: figure out read size based on the address family.
char *res = REAL(inet_ntop)(af, src, dst, size);
- if (res)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
return res;
}
INTERCEPTOR(int, inet_pton, int af, const char *src, void *dst) {
@@ -725,13 +1023,30 @@ INTERCEPTOR(int, inet_pton, int af, const char *src, void *dst) {
}
return res;
}
-#define INIT_INET \
- INTERCEPT_FUNCTION(inet_ntop); \
- INTERCEPT_FUNCTION(inet_pton);
+#define INIT_INET \
+ COMMON_INTERCEPT_FUNCTION(inet_ntop); \
+ COMMON_INTERCEPT_FUNCTION(inet_pton);
#else
#define INIT_INET
#endif
+#if SANITIZER_INTERCEPT_INET
+INTERCEPTOR(int, inet_aton, const char *cp, void *dst) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, inet_aton, cp, dst);
+ if (cp) COMMON_INTERCEPTOR_READ_RANGE(ctx, cp, REAL(strlen)(cp) + 1);
+ int res = REAL(inet_aton)(cp, dst);
+ if (res != 0) {
+ uptr sz = __sanitizer_in_addr_sz(af_inet);
+ if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sz);
+ }
+ return res;
+}
+#define INIT_INET_ATON COMMON_INTERCEPT_FUNCTION(inet_aton);
+#else
+#define INIT_INET_ATON
+#endif
+
#if SANITIZER_INTERCEPT_PTHREAD_GETSCHEDPARAM
INTERCEPTOR(int, pthread_getschedparam, uptr thread, int *policy, int *param) {
void *ctx;
@@ -743,7 +1058,8 @@ INTERCEPTOR(int, pthread_getschedparam, uptr thread, int *policy, int *param) {
}
return res;
}
-#define INIT_PTHREAD_GETSCHEDPARAM INTERCEPT_FUNCTION(pthread_getschedparam);
+#define INIT_PTHREAD_GETSCHEDPARAM \
+ COMMON_INTERCEPT_FUNCTION(pthread_getschedparam);
#else
#define INIT_PTHREAD_GETSCHEDPARAM
#endif
@@ -760,12 +1076,13 @@ INTERCEPTOR(int, getaddrinfo, char *node, char *service,
if (hints)
COMMON_INTERCEPTOR_READ_RANGE(ctx, hints, sizeof(__sanitizer_addrinfo));
int res = REAL(getaddrinfo)(node, service, hints, out);
- if (res == 0) {
+ if (res == 0 && out) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, out, sizeof(*out));
struct __sanitizer_addrinfo *p = *out;
while (p) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(__sanitizer_addrinfo));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
if (p->ai_addr)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_addr, struct_sockaddr_sz);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_addr, p->ai_addrlen);
if (p->ai_canonname)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_canonname,
REAL(strlen)(p->ai_canonname) + 1);
@@ -774,11 +1091,34 @@ INTERCEPTOR(int, getaddrinfo, char *node, char *service,
}
return res;
}
-#define INIT_GETADDRINFO INTERCEPT_FUNCTION(getaddrinfo);
+#define INIT_GETADDRINFO COMMON_INTERCEPT_FUNCTION(getaddrinfo);
#else
#define INIT_GETADDRINFO
#endif
+#if SANITIZER_INTERCEPT_GETNAMEINFO
+INTERCEPTOR(int, getnameinfo, void *sockaddr, unsigned salen, char *host,
+ unsigned hostlen, char *serv, unsigned servlen, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getnameinfo, sockaddr, salen, host, hostlen,
+ serv, servlen, flags);
+ // FIXME: consider adding READ_RANGE(sockaddr, salen)
+ // There is padding in in_addr that may make this too noisy
+ int res =
+ REAL(getnameinfo)(sockaddr, salen, host, hostlen, serv, servlen, flags);
+ if (res == 0) {
+ if (host && hostlen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, host, REAL(strlen)(host) + 1);
+ if (serv && servlen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, serv, REAL(strlen)(serv) + 1);
+ }
+ return res;
+}
+#define INIT_GETNAMEINFO COMMON_INTERCEPT_FUNCTION(getnameinfo);
+#else
+#define INIT_GETNAMEINFO
+#endif
+
#if SANITIZER_INTERCEPT_GETSOCKNAME
INTERCEPTOR(int, getsockname, int sock_fd, void *addr, int *addrlen) {
void *ctx;
@@ -791,7 +1131,7 @@ INTERCEPTOR(int, getsockname, int sock_fd, void *addr, int *addrlen) {
}
return res;
}
-#define INIT_GETSOCKNAME INTERCEPT_FUNCTION(getsockname);
+#define INIT_GETSOCKNAME COMMON_INTERCEPT_FUNCTION(getsockname);
#else
#define INIT_GETSOCKNAME
#endif
@@ -837,10 +1177,10 @@ INTERCEPTOR(struct __sanitizer_hostent *, gethostbyaddr, void *addr, int len,
return res;
}
-INTERCEPTOR(struct __sanitizer_hostent *, gethostent) {
+INTERCEPTOR(struct __sanitizer_hostent *, gethostent, int fake) {
void *ctx;
- COMMON_INTERCEPTOR_ENTER(ctx, gethostent);
- struct __sanitizer_hostent *res = REAL(gethostent)();
+ COMMON_INTERCEPTOR_ENTER(ctx, gethostent, fake);
+ struct __sanitizer_hostent *res = REAL(gethostent)(fake);
if (res) write_hostent(ctx, res);
return res;
}
@@ -852,11 +1192,11 @@ INTERCEPTOR(struct __sanitizer_hostent *, gethostbyname2, char *name, int af) {
if (res) write_hostent(ctx, res);
return res;
}
-#define INIT_GETHOSTBYNAME \
- INTERCEPT_FUNCTION(gethostent); \
- INTERCEPT_FUNCTION(gethostbyaddr); \
- INTERCEPT_FUNCTION(gethostbyname); \
- INTERCEPT_FUNCTION(gethostbyname2);
+#define INIT_GETHOSTBYNAME \
+ COMMON_INTERCEPT_FUNCTION(gethostent); \
+ COMMON_INTERCEPT_FUNCTION(gethostbyaddr); \
+ COMMON_INTERCEPT_FUNCTION(gethostbyname); \
+ COMMON_INTERCEPT_FUNCTION(gethostbyname2);
#else
#define INIT_GETHOSTBYNAME
#endif
@@ -935,11 +1275,11 @@ INTERCEPTOR(int, gethostbyname2_r, char *name, int af,
}
return res;
}
-#define INIT_GETHOSTBYNAME_R \
- INTERCEPT_FUNCTION(gethostent_r); \
- INTERCEPT_FUNCTION(gethostbyaddr_r); \
- INTERCEPT_FUNCTION(gethostbyname_r); \
- INTERCEPT_FUNCTION(gethostbyname2_r);
+#define INIT_GETHOSTBYNAME_R \
+ COMMON_INTERCEPT_FUNCTION(gethostent_r); \
+ COMMON_INTERCEPT_FUNCTION(gethostbyaddr_r); \
+ COMMON_INTERCEPT_FUNCTION(gethostbyname_r); \
+ COMMON_INTERCEPT_FUNCTION(gethostbyname2_r);
#else
#define INIT_GETHOSTBYNAME_R
#endif
@@ -956,23 +1296,1555 @@ INTERCEPTOR(int, getsockopt, int sockfd, int level, int optname, void *optval,
if (optval && optlen) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, optval, *optlen);
return res;
}
-#define INIT_GETSOCKOPT INTERCEPT_FUNCTION(getsockopt);
+#define INIT_GETSOCKOPT COMMON_INTERCEPT_FUNCTION(getsockopt);
#else
#define INIT_GETSOCKOPT
#endif
+#if SANITIZER_INTERCEPT_ACCEPT
+INTERCEPTOR(int, accept, int fd, void *addr, unsigned *addrlen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, accept, fd, addr, addrlen);
+ unsigned addrlen0;
+ if (addrlen) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
+ addrlen0 = *addrlen;
+ }
+ int fd2 = REAL(accept)(fd, addr, addrlen);
+ if (fd2 >= 0) {
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2);
+ if (addr && addrlen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0));
+ }
+ return fd2;
+}
+#define INIT_ACCEPT COMMON_INTERCEPT_FUNCTION(accept);
+#else
+#define INIT_ACCEPT
+#endif
+
+#if SANITIZER_INTERCEPT_ACCEPT4
+INTERCEPTOR(int, accept4, int fd, void *addr, unsigned *addrlen, int f) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, accept4, fd, addr, addrlen, f);
+ unsigned addrlen0;
+ if (addrlen) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
+ addrlen0 = *addrlen;
+ }
+ int fd2 = REAL(accept4)(fd, addr, addrlen, f);
+ if (fd2 >= 0) {
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2);
+ if (addr && addrlen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0));
+ }
+ return fd2;
+}
+#define INIT_ACCEPT4 COMMON_INTERCEPT_FUNCTION(accept4);
+#else
+#define INIT_ACCEPT4
+#endif
+
+#if SANITIZER_INTERCEPT_MODF
+INTERCEPTOR(double, modf, double x, double *iptr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, modf, x, iptr);
+ double res = REAL(modf)(x, iptr);
+ if (iptr) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
+ }
+ return res;
+}
+INTERCEPTOR(float, modff, float x, float *iptr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, modff, x, iptr);
+ float res = REAL(modff)(x, iptr);
+ if (iptr) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
+ }
+ return res;
+}
+INTERCEPTOR(long double, modfl, long double x, long double *iptr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, modfl, x, iptr);
+ long double res = REAL(modfl)(x, iptr);
+ if (iptr) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
+ }
+ return res;
+}
+#define INIT_MODF \
+ COMMON_INTERCEPT_FUNCTION(modf); \
+ COMMON_INTERCEPT_FUNCTION(modff); \
+ COMMON_INTERCEPT_FUNCTION(modfl);
+#else
+#define INIT_MODF
+#endif
+
+#if SANITIZER_INTERCEPT_RECVMSG
+static void write_msghdr(void *ctx, struct __sanitizer_msghdr *msg,
+ SSIZE_T maxlen) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg, sizeof(*msg));
+ if (msg->msg_name && msg->msg_namelen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_name, msg->msg_namelen);
+ if (msg->msg_iov && msg->msg_iovlen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_iov,
+ sizeof(*msg->msg_iov) * msg->msg_iovlen);
+ write_iovec(ctx, msg->msg_iov, msg->msg_iovlen, maxlen);
+ if (msg->msg_control && msg->msg_controllen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_control, msg->msg_controllen);
+}
+
+INTERCEPTOR(SSIZE_T, recvmsg, int fd, struct __sanitizer_msghdr *msg,
+ int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, recvmsg, fd, msg, flags);
+ SSIZE_T res = REAL(recvmsg)(fd, msg, flags);
+ if (res >= 0) {
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ if (msg) write_msghdr(ctx, msg, res);
+ }
+ return res;
+}
+#define INIT_RECVMSG COMMON_INTERCEPT_FUNCTION(recvmsg);
+#else
+#define INIT_RECVMSG
+#endif
+
+#if SANITIZER_INTERCEPT_GETPEERNAME
+INTERCEPTOR(int, getpeername, int sockfd, void *addr, unsigned *addrlen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getpeername, sockfd, addr, addrlen);
+ unsigned addr_sz;
+ if (addrlen) addr_sz = *addrlen;
+ int res = REAL(getpeername)(sockfd, addr, addrlen);
+ if (!res && addr && addrlen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addr_sz, *addrlen));
+ return res;
+}
+#define INIT_GETPEERNAME COMMON_INTERCEPT_FUNCTION(getpeername);
+#else
+#define INIT_GETPEERNAME
+#endif
+
+#if SANITIZER_INTERCEPT_SYSINFO
+INTERCEPTOR(int, sysinfo, void *info) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sysinfo, info);
+ int res = REAL(sysinfo)(info);
+ if (!res && info)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, struct_sysinfo_sz);
+ return res;
+}
+#define INIT_SYSINFO COMMON_INTERCEPT_FUNCTION(sysinfo);
+#else
+#define INIT_SYSINFO
+#endif
+
+#if SANITIZER_INTERCEPT_READDIR
+INTERCEPTOR(__sanitizer_dirent *, readdir, void *dirp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, readdir, dirp);
+ __sanitizer_dirent *res = REAL(readdir)(dirp);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen);
+ return res;
+}
+
+INTERCEPTOR(int, readdir_r, void *dirp, __sanitizer_dirent *entry,
+ __sanitizer_dirent **result) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, readdir_r, dirp, entry, result);
+ int res = REAL(readdir_r)(dirp, entry, result);
+ if (!res) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ if (*result)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen);
+ }
+ return res;
+}
+
+#define INIT_READDIR \
+ COMMON_INTERCEPT_FUNCTION(readdir); \
+ COMMON_INTERCEPT_FUNCTION(readdir_r);
+#else
+#define INIT_READDIR
+#endif
+
+#if SANITIZER_INTERCEPT_READDIR64
+INTERCEPTOR(__sanitizer_dirent64 *, readdir64, void *dirp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, readdir64, dirp);
+ __sanitizer_dirent64 *res = REAL(readdir64)(dirp);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen);
+ return res;
+}
+
+INTERCEPTOR(int, readdir64_r, void *dirp, __sanitizer_dirent64 *entry,
+ __sanitizer_dirent64 **result) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, readdir64_r, dirp, entry, result);
+ int res = REAL(readdir64_r)(dirp, entry, result);
+ if (!res) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ if (*result)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen);
+ }
+ return res;
+}
+#define INIT_READDIR64 \
+ COMMON_INTERCEPT_FUNCTION(readdir64); \
+ COMMON_INTERCEPT_FUNCTION(readdir64_r);
+#else
+#define INIT_READDIR64
+#endif
+
+#if SANITIZER_INTERCEPT_PTRACE
+INTERCEPTOR(uptr, ptrace, int request, int pid, void *addr, void *data) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ptrace, request, pid, addr, data);
+
+ if (data) {
+ if (request == ptrace_setregs)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_regs_struct_sz);
+ else if (request == ptrace_setfpregs)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpregs_struct_sz);
+ else if (request == ptrace_setfpxregs)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpxregs_struct_sz);
+ else if (request == ptrace_setsiginfo)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, siginfo_t_sz);
+ else if (request == ptrace_setregset) {
+ __sanitizer_iovec *iov = (__sanitizer_iovec *)data;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, iov->iov_base, iov->iov_len);
+ }
+ }
+
+ uptr res = REAL(ptrace)(request, pid, addr, data);
+
+ if (!res && data) {
+ // Note that PEEK* requests assing different meaning to the return value.
+ // This function does not handle them (nor does it need to).
+ if (request == ptrace_getregs)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_regs_struct_sz);
+ else if (request == ptrace_getfpregs)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpregs_struct_sz);
+ else if (request == ptrace_getfpxregs)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpxregs_struct_sz);
+ else if (request == ptrace_getsiginfo)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, siginfo_t_sz);
+ else if (request == ptrace_getregset) {
+ __sanitizer_iovec *iov = (__sanitizer_iovec *)data;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iov->iov_base, iov->iov_len);
+ }
+ }
+ return res;
+}
+
+#define INIT_PTRACE COMMON_INTERCEPT_FUNCTION(ptrace);
+#else
+#define INIT_PTRACE
+#endif
+
+#if SANITIZER_INTERCEPT_SETLOCALE
+INTERCEPTOR(char *, setlocale, int category, char *locale) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, setlocale, category, locale);
+ if (locale)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, locale, REAL(strlen)(locale) + 1);
+ char *res = REAL(setlocale)(category, locale);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+
+#define INIT_SETLOCALE COMMON_INTERCEPT_FUNCTION(setlocale);
+#else
+#define INIT_SETLOCALE
+#endif
+
+#if SANITIZER_INTERCEPT_GETCWD
+INTERCEPTOR(char *, getcwd, char *buf, SIZE_T size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getcwd, buf, size);
+ char *res = REAL(getcwd)(buf, size);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+#define INIT_GETCWD COMMON_INTERCEPT_FUNCTION(getcwd);
+#else
+#define INIT_GETCWD
+#endif
+
+#if SANITIZER_INTERCEPT_GET_CURRENT_DIR_NAME
+INTERCEPTOR(char *, get_current_dir_name, int fake) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, get_current_dir_name, fake);
+ char *res = REAL(get_current_dir_name)(fake);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+
+#define INIT_GET_CURRENT_DIR_NAME \
+ COMMON_INTERCEPT_FUNCTION(get_current_dir_name);
+#else
+#define INIT_GET_CURRENT_DIR_NAME
+#endif
+
+#if SANITIZER_INTERCEPT_STRTOIMAX
+INTERCEPTOR(INTMAX_T, strtoimax, const char *nptr, char **endptr, int base) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strtoimax, nptr, endptr, base);
+ INTMAX_T res = REAL(strtoimax)(nptr, endptr, base);
+ if (endptr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr));
+ return res;
+}
+
+INTERCEPTOR(INTMAX_T, strtoumax, const char *nptr, char **endptr, int base) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strtoumax, nptr, endptr, base);
+ INTMAX_T res = REAL(strtoumax)(nptr, endptr, base);
+ if (endptr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr));
+ return res;
+}
+
+#define INIT_STRTOIMAX \
+ COMMON_INTERCEPT_FUNCTION(strtoimax); \
+ COMMON_INTERCEPT_FUNCTION(strtoumax);
+#else
+#define INIT_STRTOIMAX
+#endif
+
+#if SANITIZER_INTERCEPT_MBSTOWCS
+INTERCEPTOR(SIZE_T, mbstowcs, wchar_t *dest, const char *src, SIZE_T len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, mbstowcs, dest, src, len);
+ SIZE_T res = REAL(mbstowcs)(dest, src, len);
+ if (res != (SIZE_T) - 1 && dest) {
+ SIZE_T write_cnt = res + (res < len);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t));
+ }
+ return res;
+}
+
+INTERCEPTOR(SIZE_T, mbsrtowcs, wchar_t *dest, const char **src, SIZE_T len,
+ void *ps) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, mbsrtowcs, dest, src, len, ps);
+ if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
+ if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
+ SIZE_T res = REAL(mbsrtowcs)(dest, src, len, ps);
+ if (res != (SIZE_T)(-1) && dest && src) {
+ // This function, and several others, may or may not write the terminating
+ // \0 character. They write it iff they clear *src.
+ SIZE_T write_cnt = res + !*src;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t));
+ }
+ return res;
+}
+
+#define INIT_MBSTOWCS \
+ COMMON_INTERCEPT_FUNCTION(mbstowcs); \
+ COMMON_INTERCEPT_FUNCTION(mbsrtowcs);
+#else
+#define INIT_MBSTOWCS
+#endif
+
+#if SANITIZER_INTERCEPT_MBSNRTOWCS
+INTERCEPTOR(SIZE_T, mbsnrtowcs, wchar_t *dest, const char **src, SIZE_T nms,
+ SIZE_T len, void *ps) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, mbsnrtowcs, dest, src, nms, len, ps);
+ if (src) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
+ if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms);
+ }
+ if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
+ SIZE_T res = REAL(mbsnrtowcs)(dest, src, nms, len, ps);
+ if (res != (SIZE_T)(-1) && dest && src) {
+ SIZE_T write_cnt = res + !*src;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t));
+ }
+ return res;
+}
+
+#define INIT_MBSNRTOWCS COMMON_INTERCEPT_FUNCTION(mbsnrtowcs);
+#else
+#define INIT_MBSNRTOWCS
+#endif
+
+#if SANITIZER_INTERCEPT_WCSTOMBS
+INTERCEPTOR(SIZE_T, wcstombs, char *dest, const wchar_t *src, SIZE_T len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wcstombs, dest, src, len);
+ SIZE_T res = REAL(wcstombs)(dest, src, len);
+ if (res != (SIZE_T) - 1 && dest) {
+ SIZE_T write_cnt = res + (res < len);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt);
+ }
+ return res;
+}
+
+INTERCEPTOR(SIZE_T, wcsrtombs, char *dest, const wchar_t **src, SIZE_T len,
+ void *ps) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wcsrtombs, dest, src, len, ps);
+ if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
+ if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
+ SIZE_T res = REAL(wcsrtombs)(dest, src, len, ps);
+ if (res != (SIZE_T) - 1 && dest && src) {
+ SIZE_T write_cnt = res + !*src;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt);
+ }
+ return res;
+}
+
+#define INIT_WCSTOMBS \
+ COMMON_INTERCEPT_FUNCTION(wcstombs); \
+ COMMON_INTERCEPT_FUNCTION(wcsrtombs);
+#else
+#define INIT_WCSTOMBS
+#endif
+
+#if SANITIZER_INTERCEPT_WCSNRTOMBS
+INTERCEPTOR(SIZE_T, wcsnrtombs, char *dest, const wchar_t **src, SIZE_T nms,
+ SIZE_T len, void *ps) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wcsnrtombs, dest, src, nms, len, ps);
+ if (src) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
+ if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms);
+ }
+ if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
+ SIZE_T res = REAL(wcsnrtombs)(dest, src, nms, len, ps);
+ if (res != (SIZE_T) - 1 && dest && src) {
+ SIZE_T write_cnt = res + !*src;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt);
+ }
+ return res;
+}
+
+#define INIT_WCSNRTOMBS COMMON_INTERCEPT_FUNCTION(wcsnrtombs);
+#else
+#define INIT_WCSNRTOMBS
+#endif
+
+#if SANITIZER_INTERCEPT_TCGETATTR
+INTERCEPTOR(int, tcgetattr, int fd, void *termios_p) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, tcgetattr, fd, termios_p);
+ int res = REAL(tcgetattr)(fd, termios_p);
+ if (!res && termios_p)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, termios_p, struct_termios_sz);
+ return res;
+}
+
+#define INIT_TCGETATTR COMMON_INTERCEPT_FUNCTION(tcgetattr);
+#else
+#define INIT_TCGETATTR
+#endif
+
+#if SANITIZER_INTERCEPT_REALPATH
+INTERCEPTOR(char *, realpath, const char *path, char *resolved_path) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, realpath, path, resolved_path);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+
+ // Workaround a bug in glibc where dlsym(RTLD_NEXT, ...) returns the oldest
+ // version of a versioned symbol. For realpath(), this gives us something
+ // (called __old_realpath) that does not handle NULL in the second argument.
+ // Handle it as part of the interceptor.
+ char *allocated_path = 0;
+ if (!resolved_path)
+ allocated_path = resolved_path = (char *)WRAP(malloc)(path_max + 1);
+
+ char *res = REAL(realpath)(path, resolved_path);
+ if (allocated_path && !res) WRAP(free)(allocated_path);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+#define INIT_REALPATH COMMON_INTERCEPT_FUNCTION(realpath);
+#else
+#define INIT_REALPATH
+#endif
+
+#if SANITIZER_INTERCEPT_CANONICALIZE_FILE_NAME
+INTERCEPTOR(char *, canonicalize_file_name, const char *path) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, canonicalize_file_name, path);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ char *res = REAL(canonicalize_file_name)(path);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+#define INIT_CANONICALIZE_FILE_NAME \
+ COMMON_INTERCEPT_FUNCTION(canonicalize_file_name);
+#else
+#define INIT_CANONICALIZE_FILE_NAME
+#endif
+
+#if SANITIZER_INTERCEPT_CONFSTR
+INTERCEPTOR(SIZE_T, confstr, int name, char *buf, SIZE_T len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, confstr, name, buf, len);
+ SIZE_T res = REAL(confstr)(name, buf, len);
+ if (buf && res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res < len ? res : len);
+ return res;
+}
+#define INIT_CONFSTR COMMON_INTERCEPT_FUNCTION(confstr);
+#else
+#define INIT_CONFSTR
+#endif
+
+#if SANITIZER_INTERCEPT_SCHED_GETAFFINITY
+INTERCEPTOR(int, sched_getaffinity, int pid, SIZE_T cpusetsize, void *mask) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sched_getaffinity, pid, cpusetsize, mask);
+ int res = REAL(sched_getaffinity)(pid, cpusetsize, mask);
+ if (mask && !res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mask, cpusetsize);
+ return res;
+}
+#define INIT_SCHED_GETAFFINITY COMMON_INTERCEPT_FUNCTION(sched_getaffinity);
+#else
+#define INIT_SCHED_GETAFFINITY
+#endif
+
+#if SANITIZER_INTERCEPT_STRERROR
+INTERCEPTOR(char *, strerror, int errnum) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strerror, errnum);
+ char *res = REAL(strerror)(errnum);
+ if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+#define INIT_STRERROR COMMON_INTERCEPT_FUNCTION(strerror);
+#else
+#define INIT_STRERROR
+#endif
+
+#if SANITIZER_INTERCEPT_STRERROR_R
+INTERCEPTOR(char *, strerror_r, int errnum, char *buf, SIZE_T buflen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strerror_r, errnum, buf, buflen);
+ char *res = REAL(strerror_r)(errnum, buf, buflen);
+ // There are 2 versions of strerror_r:
+ // * POSIX version returns 0 on success, negative error code on failure,
+ // writes message to buf.
+ // * GNU version returns message pointer, which points to either buf or some
+ // static storage.
+ SIZE_T posix_res = (SIZE_T)res;
+ if (posix_res < 1024 || posix_res > (SIZE_T) - 1024) {
+ // POSIX version. Spec is not clear on whether buf is NULL-terminated.
+ // At least on OSX, buf contents are valid even when the call fails.
+ SIZE_T sz = internal_strnlen(buf, buflen);
+ if (sz < buflen) ++sz;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz);
+ } else {
+ // GNU version.
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ }
+ return res;
+}
+#define INIT_STRERROR_R COMMON_INTERCEPT_FUNCTION(strerror_r);
+#else
+#define INIT_STRERROR_R
+#endif
+
+#if SANITIZER_INTERCEPT_SCANDIR
+typedef int (*scandir_filter_f)(const struct __sanitizer_dirent *);
+typedef int (*scandir_compar_f)(const struct __sanitizer_dirent **,
+ const struct __sanitizer_dirent **);
+
+static THREADLOCAL void *scandir_ctx;
+static THREADLOCAL scandir_filter_f scandir_filter;
+static THREADLOCAL scandir_compar_f scandir_compar;
+
+static int wrapped_scandir_filter(const struct __sanitizer_dirent *dir) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(scandir_ctx, 1);
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, dir, dir->d_reclen);
+ return scandir_filter(dir);
+}
+
+static int wrapped_scandir_compar(const struct __sanitizer_dirent **a,
+ const struct __sanitizer_dirent **b) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(scandir_ctx, 2);
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, a, sizeof(*a));
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, *a, (*a)->d_reclen);
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, b, sizeof(*b));
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, *b, (*b)->d_reclen);
+ return scandir_compar(a, b);
+}
+
+INTERCEPTOR(int, scandir, char *dirp, __sanitizer_dirent ***namelist,
+ scandir_filter_f filter, scandir_compar_f compar) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, scandir, dirp, namelist, filter, compar);
+ if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1);
+ CHECK_EQ(0, scandir_ctx);
+ scandir_ctx = ctx;
+ scandir_filter = filter;
+ scandir_compar = compar;
+ int res = REAL(scandir)(dirp, namelist, filter ? wrapped_scandir_filter : 0,
+ compar ? wrapped_scandir_compar : 0);
+ scandir_ctx = 0;
+ scandir_filter = 0;
+ scandir_compar = 0;
+ if (namelist && res > 0) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res);
+ for (int i = 0; i < res; ++i)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i],
+ (*namelist)[i]->d_reclen);
+ }
+ return res;
+}
+#define INIT_SCANDIR COMMON_INTERCEPT_FUNCTION(scandir);
+#else
+#define INIT_SCANDIR
+#endif
+
+#if SANITIZER_INTERCEPT_SCANDIR64
+typedef int (*scandir64_filter_f)(const struct __sanitizer_dirent64 *);
+typedef int (*scandir64_compar_f)(const struct __sanitizer_dirent64 **,
+ const struct __sanitizer_dirent64 **);
+
+static THREADLOCAL void *scandir64_ctx;
+static THREADLOCAL scandir64_filter_f scandir64_filter;
+static THREADLOCAL scandir64_compar_f scandir64_compar;
+
+static int wrapped_scandir64_filter(const struct __sanitizer_dirent64 *dir) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(scandir64_ctx, 1);
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, dir, dir->d_reclen);
+ return scandir64_filter(dir);
+}
+
+static int wrapped_scandir64_compar(const struct __sanitizer_dirent64 **a,
+ const struct __sanitizer_dirent64 **b) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(scandir64_ctx, 2);
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, a, sizeof(*a));
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, *a, (*a)->d_reclen);
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, b, sizeof(*b));
+ COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, *b, (*b)->d_reclen);
+ return scandir64_compar(a, b);
+}
+
+INTERCEPTOR(int, scandir64, char *dirp, __sanitizer_dirent64 ***namelist,
+ scandir64_filter_f filter, scandir64_compar_f compar) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, scandir64, dirp, namelist, filter, compar);
+ if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1);
+ CHECK_EQ(0, scandir64_ctx);
+ scandir64_ctx = ctx;
+ scandir64_filter = filter;
+ scandir64_compar = compar;
+ int res =
+ REAL(scandir64)(dirp, namelist, filter ? wrapped_scandir64_filter : 0,
+ compar ? wrapped_scandir64_compar : 0);
+ scandir64_ctx = 0;
+ scandir64_filter = 0;
+ scandir64_compar = 0;
+ if (namelist && res > 0) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res);
+ for (int i = 0; i < res; ++i)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i],
+ (*namelist)[i]->d_reclen);
+ }
+ return res;
+}
+#define INIT_SCANDIR64 COMMON_INTERCEPT_FUNCTION(scandir64);
+#else
+#define INIT_SCANDIR64
+#endif
+
+#if SANITIZER_INTERCEPT_GETGROUPS
+INTERCEPTOR(int, getgroups, int size, u32 *lst) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getgroups, size, lst);
+ int res = REAL(getgroups)(size, lst);
+ if (res && lst) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lst, res * sizeof(*lst));
+ return res;
+}
+#define INIT_GETGROUPS COMMON_INTERCEPT_FUNCTION(getgroups);
+#else
+#define INIT_GETGROUPS
+#endif
+
+#if SANITIZER_INTERCEPT_POLL
+static void read_pollfd(void *ctx, __sanitizer_pollfd *fds,
+ __sanitizer_nfds_t nfds) {
+ for (unsigned i = 0; i < nfds; ++i) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].fd, sizeof(fds[i].fd));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].events, sizeof(fds[i].events));
+ }
+}
+
+static void write_pollfd(void *ctx, __sanitizer_pollfd *fds,
+ __sanitizer_nfds_t nfds) {
+ for (unsigned i = 0; i < nfds; ++i)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &fds[i].revents,
+ sizeof(fds[i].revents));
+}
+
+INTERCEPTOR(int, poll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds,
+ int timeout) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, poll, fds, nfds, timeout);
+ if (fds && nfds) read_pollfd(ctx, fds, nfds);
+ int res = COMMON_INTERCEPTOR_BLOCK_REAL(poll)(fds, nfds, timeout);
+ if (fds && nfds) write_pollfd(ctx, fds, nfds);
+ return res;
+}
+#define INIT_POLL COMMON_INTERCEPT_FUNCTION(poll);
+#else
+#define INIT_POLL
+#endif
+
+#if SANITIZER_INTERCEPT_PPOLL
+INTERCEPTOR(int, ppoll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds,
+ void *timeout_ts, __sanitizer_sigset_t *sigmask) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ppoll, fds, nfds, timeout_ts, sigmask);
+ if (fds && nfds) read_pollfd(ctx, fds, nfds);
+ if (timeout_ts)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout_ts, struct_timespec_sz);
+ // FIXME: read sigmask when all of sigemptyset, etc are intercepted.
+ int res =
+ COMMON_INTERCEPTOR_BLOCK_REAL(ppoll)(fds, nfds, timeout_ts, sigmask);
+ if (fds && nfds) write_pollfd(ctx, fds, nfds);
+ return res;
+}
+#define INIT_PPOLL COMMON_INTERCEPT_FUNCTION(ppoll);
+#else
+#define INIT_PPOLL
+#endif
+
+#if SANITIZER_INTERCEPT_WORDEXP
+INTERCEPTOR(int, wordexp, char *s, __sanitizer_wordexp_t *p, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wordexp, s, p, flags);
+ if (s) COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1);
+ int res = REAL(wordexp)(s, p, flags);
+ if (!res && p) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
+ if (p->we_wordc)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->we_wordv,
+ sizeof(*p->we_wordv) * p->we_wordc);
+ for (uptr i = 0; i < p->we_wordc; ++i) {
+ char *w = p->we_wordv[i];
+ if (w) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, w, REAL(strlen)(w) + 1);
+ }
+ }
+ return res;
+}
+#define INIT_WORDEXP COMMON_INTERCEPT_FUNCTION(wordexp);
+#else
+#define INIT_WORDEXP
+#endif
+
+#if SANITIZER_INTERCEPT_SIGWAIT
+INTERCEPTOR(int, sigwait, __sanitizer_sigset_t *set, int *sig) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sigwait, set, sig);
+ // FIXME: read sigset_t when all of sigemptyset, etc are intercepted
+ int res = REAL(sigwait)(set, sig);
+ if (!res && sig) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sig, sizeof(*sig));
+ return res;
+}
+#define INIT_SIGWAIT COMMON_INTERCEPT_FUNCTION(sigwait);
+#else
+#define INIT_SIGWAIT
+#endif
+
+#if SANITIZER_INTERCEPT_SIGWAITINFO
+INTERCEPTOR(int, sigwaitinfo, __sanitizer_sigset_t *set, void *info) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sigwaitinfo, set, info);
+ // FIXME: read sigset_t when all of sigemptyset, etc are intercepted
+ int res = REAL(sigwaitinfo)(set, info);
+ if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz);
+ return res;
+}
+#define INIT_SIGWAITINFO COMMON_INTERCEPT_FUNCTION(sigwaitinfo);
+#else
+#define INIT_SIGWAITINFO
+#endif
+
+#if SANITIZER_INTERCEPT_SIGTIMEDWAIT
+INTERCEPTOR(int, sigtimedwait, __sanitizer_sigset_t *set, void *info,
+ void *timeout) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sigtimedwait, set, info, timeout);
+ if (timeout) COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout, struct_timespec_sz);
+ // FIXME: read sigset_t when all of sigemptyset, etc are intercepted
+ int res = REAL(sigtimedwait)(set, info, timeout);
+ if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz);
+ return res;
+}
+#define INIT_SIGTIMEDWAIT COMMON_INTERCEPT_FUNCTION(sigtimedwait);
+#else
+#define INIT_SIGTIMEDWAIT
+#endif
+
+#if SANITIZER_INTERCEPT_SIGSETOPS
+INTERCEPTOR(int, sigemptyset, __sanitizer_sigset_t *set) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sigemptyset, set);
+ int res = REAL(sigemptyset)(set);
+ if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set));
+ return res;
+}
+
+INTERCEPTOR(int, sigfillset, __sanitizer_sigset_t *set) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sigfillset, set);
+ int res = REAL(sigfillset)(set);
+ if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set));
+ return res;
+}
+#define INIT_SIGSETOPS \
+ COMMON_INTERCEPT_FUNCTION(sigemptyset); \
+ COMMON_INTERCEPT_FUNCTION(sigfillset);
+#else
+#define INIT_SIGSETOPS
+#endif
+
+#if SANITIZER_INTERCEPT_SIGPENDING
+INTERCEPTOR(int, sigpending, __sanitizer_sigset_t *set) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sigpending, set);
+ int res = REAL(sigpending)(set);
+ if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set));
+ return res;
+}
+#define INIT_SIGPENDING COMMON_INTERCEPT_FUNCTION(sigpending);
+#else
+#define INIT_SIGPENDING
+#endif
+
+#if SANITIZER_INTERCEPT_SIGPROCMASK
+INTERCEPTOR(int, sigprocmask, int how, __sanitizer_sigset_t *set,
+ __sanitizer_sigset_t *oldset) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sigprocmask, how, set, oldset);
+ // FIXME: read sigset_t when all of sigemptyset, etc are intercepted
+ int res = REAL(sigprocmask)(how, set, oldset);
+ if (!res && oldset)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldset, sizeof(*oldset));
+ return res;
+}
+#define INIT_SIGPROCMASK COMMON_INTERCEPT_FUNCTION(sigprocmask);
+#else
+#define INIT_SIGPROCMASK
+#endif
+
+#if SANITIZER_INTERCEPT_BACKTRACE
+INTERCEPTOR(int, backtrace, void **buffer, int size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, backtrace, buffer, size);
+ int res = REAL(backtrace)(buffer, size);
+ if (res && buffer)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buffer, res * sizeof(*buffer));
+ return res;
+}
+
+INTERCEPTOR(char **, backtrace_symbols, void **buffer, int size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, backtrace_symbols, buffer, size);
+ if (buffer && size)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, size * sizeof(*buffer));
+ char **res = REAL(backtrace_symbols)(buffer, size);
+ if (res && size) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, size * sizeof(*res));
+ for (int i = 0; i < size; ++i)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res[i], REAL(strlen(res[i])) + 1);
+ }
+ return res;
+}
+#define INIT_BACKTRACE \
+ COMMON_INTERCEPT_FUNCTION(backtrace); \
+ COMMON_INTERCEPT_FUNCTION(backtrace_symbols);
+#else
+#define INIT_BACKTRACE
+#endif
+
+#if SANITIZER_INTERCEPT__EXIT
+INTERCEPTOR(void, _exit, int status) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, _exit, status);
+ int status1 = COMMON_INTERCEPTOR_ON_EXIT(ctx);
+ if (status == 0) status = status1;
+ REAL(_exit)(status);
+}
+#define INIT__EXIT COMMON_INTERCEPT_FUNCTION(_exit);
+#else
+#define INIT__EXIT
+#endif
+
+#if SANITIZER_INTERCEPT_PHTREAD_MUTEX
+INTERCEPTOR(int, pthread_mutex_lock, void *m) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_lock, m);
+ int res = REAL(pthread_mutex_lock)(m);
+ if (res == errno_EOWNERDEAD)
+ COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m);
+ if (res == 0 || res == errno_EOWNERDEAD)
+ COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m);
+ return res;
+}
+
+INTERCEPTOR(int, pthread_mutex_unlock, void *m) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_unlock, m);
+ COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m);
+ return REAL(pthread_mutex_unlock)(m);
+}
+
+#define INIT_PTHREAD_MUTEX_LOCK COMMON_INTERCEPT_FUNCTION(pthread_mutex_lock)
+#define INIT_PTHREAD_MUTEX_UNLOCK \
+ COMMON_INTERCEPT_FUNCTION(pthread_mutex_unlock)
+#else
+#define INIT_PTHREAD_MUTEX_LOCK
+#define INIT_PTHREAD_MUTEX_UNLOCK
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_COND
+INTERCEPTOR(int, pthread_cond_wait, void *c, void *m) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_cond_wait, c, m);
+ COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, c, pthread_cond_t_sz);
+ int res = REAL(pthread_cond_wait)(c, m);
+ COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m);
+ return res;
+}
+
+INTERCEPTOR(int, pthread_cond_init, void *c, void *a) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_cond_init, c, a);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, c, pthread_cond_t_sz);
+ return REAL(pthread_cond_init)(c, a);
+}
+
+INTERCEPTOR(int, pthread_cond_signal, void *c) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_cond_signal, c);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, c, pthread_cond_t_sz);
+ return REAL(pthread_cond_signal)(c);
+}
+
+INTERCEPTOR(int, pthread_cond_broadcast, void *c) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_cond_broadcast, c);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, c, pthread_cond_t_sz);
+ return REAL(pthread_cond_broadcast)(c);
+}
+
+#define INIT_PTHREAD_COND_WAIT \
+ INTERCEPT_FUNCTION_VER(pthread_cond_wait, "GLIBC_2.3.2")
+#define INIT_PTHREAD_COND_INIT \
+ INTERCEPT_FUNCTION_VER(pthread_cond_init, "GLIBC_2.3.2")
+#define INIT_PTHREAD_COND_SIGNAL \
+ INTERCEPT_FUNCTION_VER(pthread_cond_signal, "GLIBC_2.3.2")
+#define INIT_PTHREAD_COND_BROADCAST \
+ INTERCEPT_FUNCTION_VER(pthread_cond_broadcast, "GLIBC_2.3.2")
+#else
+#define INIT_PTHREAD_COND_WAIT
+#define INIT_PTHREAD_COND_INIT
+#define INIT_PTHREAD_COND_SIGNAL
+#define INIT_PTHREAD_COND_BROADCAST
+#endif
+
+#if SANITIZER_INTERCEPT_GETMNTENT || SANITIZER_INTERCEPT_GETMNTENT_R
+static void write_mntent(void *ctx, __sanitizer_mntent *mnt) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt, sizeof(*mnt));
+ if (mnt->mnt_fsname)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_fsname,
+ REAL(strlen)(mnt->mnt_fsname) + 1);
+ if (mnt->mnt_dir)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_dir,
+ REAL(strlen)(mnt->mnt_dir) + 1);
+ if (mnt->mnt_type)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_type,
+ REAL(strlen)(mnt->mnt_type) + 1);
+ if (mnt->mnt_opts)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_opts,
+ REAL(strlen)(mnt->mnt_opts) + 1);
+}
+#endif
+
+#if SANITIZER_INTERCEPT_GETMNTENT
+INTERCEPTOR(__sanitizer_mntent *, getmntent, void *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getmntent, fp);
+ __sanitizer_mntent *res = REAL(getmntent)(fp);
+ if (res) write_mntent(ctx, res);
+ return res;
+}
+#define INIT_GETMNTENT COMMON_INTERCEPT_FUNCTION(getmntent);
+#else
+#define INIT_GETMNTENT
+#endif
+
+#if SANITIZER_INTERCEPT_GETMNTENT_R
+INTERCEPTOR(__sanitizer_mntent *, getmntent_r, void *fp,
+ __sanitizer_mntent *mntbuf, char *buf, int buflen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getmntent_r, fp, mntbuf, buf, buflen);
+ __sanitizer_mntent *res = REAL(getmntent_r)(fp, mntbuf, buf, buflen);
+ if (res) write_mntent(ctx, res);
+ return res;
+}
+#define INIT_GETMNTENT_R COMMON_INTERCEPT_FUNCTION(getmntent_r);
+#else
+#define INIT_GETMNTENT_R
+#endif
+
+#if SANITIZER_INTERCEPT_STATFS
+INTERCEPTOR(int, statfs, char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, statfs, path, buf);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ int res = REAL(statfs)(path, buf);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz);
+ return res;
+}
+INTERCEPTOR(int, fstatfs, int fd, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fstatfs, fd, buf);
+ int res = REAL(fstatfs)(fd, buf);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz);
+ return res;
+}
+#define INIT_STATFS \
+ COMMON_INTERCEPT_FUNCTION(statfs); \
+ COMMON_INTERCEPT_FUNCTION(fstatfs);
+#else
+#define INIT_STATFS
+#endif
+
+#if SANITIZER_INTERCEPT_STATFS64
+INTERCEPTOR(int, statfs64, char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, statfs64, path, buf);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ int res = REAL(statfs64)(path, buf);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz);
+ return res;
+}
+INTERCEPTOR(int, fstatfs64, int fd, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fstatfs64, fd, buf);
+ int res = REAL(fstatfs64)(fd, buf);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz);
+ return res;
+}
+#define INIT_STATFS64 \
+ COMMON_INTERCEPT_FUNCTION(statfs64); \
+ COMMON_INTERCEPT_FUNCTION(fstatfs64);
+#else
+#define INIT_STATFS64
+#endif
+
+#if SANITIZER_INTERCEPT_STATVFS
+INTERCEPTOR(int, statvfs, char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, statvfs, path, buf);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ int res = REAL(statvfs)(path, buf);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
+ return res;
+}
+INTERCEPTOR(int, fstatvfs, int fd, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs, fd, buf);
+ int res = REAL(fstatvfs)(fd, buf);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
+ return res;
+}
+#define INIT_STATVFS \
+ COMMON_INTERCEPT_FUNCTION(statvfs); \
+ COMMON_INTERCEPT_FUNCTION(fstatvfs);
+#else
+#define INIT_STATVFS
+#endif
+
+#if SANITIZER_INTERCEPT_STATVFS64
+INTERCEPTOR(int, statvfs64, char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, statvfs64, path, buf);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ int res = REAL(statvfs64)(path, buf);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz);
+ return res;
+}
+INTERCEPTOR(int, fstatvfs64, int fd, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs64, fd, buf);
+ int res = REAL(fstatvfs64)(fd, buf);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz);
+ return res;
+}
+#define INIT_STATVFS64 \
+ COMMON_INTERCEPT_FUNCTION(statvfs64); \
+ COMMON_INTERCEPT_FUNCTION(fstatvfs64);
+#else
+#define INIT_STATVFS64
+#endif
+
+#if SANITIZER_INTERCEPT_INITGROUPS
+INTERCEPTOR(int, initgroups, char *user, u32 group) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, initgroups, user, group);
+ if (user) COMMON_INTERCEPTOR_READ_RANGE(ctx, user, REAL(strlen)(user) + 1);
+ int res = REAL(initgroups)(user, group);
+ return res;
+}
+#define INIT_INITGROUPS COMMON_INTERCEPT_FUNCTION(initgroups);
+#else
+#define INIT_INITGROUPS
+#endif
+
+#if SANITIZER_INTERCEPT_ETHER
+INTERCEPTOR(char *, ether_ntoa, __sanitizer_ether_addr *addr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa, addr);
+ if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr));
+ char *res = REAL(ether_ntoa)(addr);
+ if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+INTERCEPTOR(__sanitizer_ether_addr *, ether_aton, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ether_aton, buf);
+ if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
+ __sanitizer_ether_addr *res = REAL(ether_aton)(buf);
+ if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, sizeof(*res));
+ return res;
+}
+INTERCEPTOR(int, ether_ntohost, char *hostname, __sanitizer_ether_addr *addr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ether_ntohost, hostname, addr);
+ if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr));
+ int res = REAL(ether_ntohost)(hostname, addr);
+ if (!res && hostname)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1);
+ return res;
+}
+INTERCEPTOR(int, ether_hostton, char *hostname, __sanitizer_ether_addr *addr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ether_hostton, hostname, addr);
+ if (hostname)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1);
+ int res = REAL(ether_hostton)(hostname, addr);
+ if (!res && addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr));
+ return res;
+}
+INTERCEPTOR(int, ether_line, char *line, __sanitizer_ether_addr *addr,
+ char *hostname) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ether_line, line, addr, hostname);
+ if (line) COMMON_INTERCEPTOR_READ_RANGE(ctx, line, REAL(strlen)(line) + 1);
+ int res = REAL(ether_line)(line, addr, hostname);
+ if (!res) {
+ if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr));
+ if (hostname)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1);
+ }
+ return res;
+}
+#define INIT_ETHER \
+ COMMON_INTERCEPT_FUNCTION(ether_ntoa); \
+ COMMON_INTERCEPT_FUNCTION(ether_aton); \
+ COMMON_INTERCEPT_FUNCTION(ether_ntohost); \
+ COMMON_INTERCEPT_FUNCTION(ether_hostton); \
+ COMMON_INTERCEPT_FUNCTION(ether_line);
+#else
+#define INIT_ETHER
+#endif
+
+#if SANITIZER_INTERCEPT_ETHER_R
+INTERCEPTOR(char *, ether_ntoa_r, __sanitizer_ether_addr *addr, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa_r, addr, buf);
+ if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr));
+ char *res = REAL(ether_ntoa_r)(addr, buf);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+INTERCEPTOR(__sanitizer_ether_addr *, ether_aton_r, char *buf,
+ __sanitizer_ether_addr *addr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ether_aton_r, buf, addr);
+ if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
+ __sanitizer_ether_addr *res = REAL(ether_aton_r)(buf, addr);
+ if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, sizeof(*res));
+ return res;
+}
+#define INIT_ETHER_R \
+ COMMON_INTERCEPT_FUNCTION(ether_ntoa_r); \
+ COMMON_INTERCEPT_FUNCTION(ether_aton_r);
+#else
+#define INIT_ETHER_R
+#endif
+
+#if SANITIZER_INTERCEPT_SHMCTL
+INTERCEPTOR(int, shmctl, int shmid, int cmd, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, shmctl, shmid, cmd, buf);
+ int res = REAL(shmctl)(shmid, cmd, buf);
+ if (res >= 0) {
+ unsigned sz = 0;
+ if (cmd == shmctl_ipc_stat || cmd == shmctl_shm_stat)
+ sz = sizeof(__sanitizer_shmid_ds);
+ else if (cmd == shmctl_ipc_info)
+ sz = struct_shminfo_sz;
+ else if (cmd == shmctl_shm_info)
+ sz = struct_shm_info_sz;
+ if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz);
+ }
+ return res;
+}
+#define INIT_SHMCTL COMMON_INTERCEPT_FUNCTION(shmctl);
+#else
+#define INIT_SHMCTL
+#endif
+
+#if SANITIZER_INTERCEPT_RANDOM_R
+INTERCEPTOR(int, random_r, void *buf, u32 *result) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, random_r, buf, result);
+ int res = REAL(random_r)(buf, result);
+ if (!res && result)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ return res;
+}
+#define INIT_RANDOM_R COMMON_INTERCEPT_FUNCTION(random_r);
+#else
+#define INIT_RANDOM_R
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET || \
+ SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSSCHED
+#define INTERCEPTOR_PTHREAD_ATTR_GET(what, sz) \
+ INTERCEPTOR(int, pthread_attr_get##what, void *attr, void *r) { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_get##what, attr, r); \
+ int res = REAL(pthread_attr_get##what)(attr, r); \
+ if (!res && r) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, r, sz); \
+ return res; \
+ }
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET
+INTERCEPTOR_PTHREAD_ATTR_GET(detachstate, sizeof(int))
+INTERCEPTOR_PTHREAD_ATTR_GET(guardsize, sizeof(SIZE_T))
+INTERCEPTOR_PTHREAD_ATTR_GET(schedparam, struct_sched_param_sz)
+INTERCEPTOR_PTHREAD_ATTR_GET(schedpolicy, sizeof(int))
+INTERCEPTOR_PTHREAD_ATTR_GET(scope, sizeof(int))
+INTERCEPTOR_PTHREAD_ATTR_GET(stacksize, sizeof(SIZE_T))
+INTERCEPTOR(int, pthread_attr_getstack, void *attr, void **addr, SIZE_T *size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getstack, attr, addr, size);
+ int res = REAL(pthread_attr_getstack)(attr, addr, size);
+ if (!res) {
+ if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr));
+ if (size) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, size, sizeof(*size));
+ }
+ return res;
+}
+
+#define INIT_PTHREAD_ATTR_GET \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getdetachstate); \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getguardsize); \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedparam); \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedpolicy); \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getscope); \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getstacksize); \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getstack);
+#else
+#define INIT_PTHREAD_ATTR_GET
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSCHED
+INTERCEPTOR_PTHREAD_ATTR_GET(inheritsched, sizeof(int))
+
+#define INIT_PTHREAD_ATTR_GETINHERITSCHED \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getinheritsched);
+#else
+#define INIT_PTHREAD_ATTR_GETINHERITSCHED
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETAFFINITY_NP
+INTERCEPTOR(int, pthread_attr_getaffinity_np, void *attr, SIZE_T cpusetsize,
+ void *cpuset) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getaffinity_np, attr, cpusetsize,
+ cpuset);
+ int res = REAL(pthread_attr_getaffinity_np)(attr, cpusetsize, cpuset);
+ if (!res && cpusetsize && cpuset)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cpuset, cpusetsize);
+ return res;
+}
+
+#define INIT_PTHREAD_ATTR_GETAFFINITY_NP \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getaffinity_np);
+#else
+#define INIT_PTHREAD_ATTR_GETAFFINITY_NP
+#endif
+
+#if SANITIZER_INTERCEPT_TMPNAM
+INTERCEPTOR(char *, tmpnam, char *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, tmpnam, s);
+ char *res = REAL(tmpnam)(s);
+ if (res) {
+ if (s)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1);
+ else
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ }
+ return res;
+}
+#define INIT_TMPNAM COMMON_INTERCEPT_FUNCTION(tmpnam);
+#else
+#define INIT_TMPNAM
+#endif
+
+#if SANITIZER_INTERCEPT_TMPNAM_R
+INTERCEPTOR(char *, tmpnam_r, char *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, tmpnam_r, s);
+ char *res = REAL(tmpnam_r)(s);
+ if (res && s) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1);
+ return res;
+}
+#define INIT_TMPNAM_R COMMON_INTERCEPT_FUNCTION(tmpnam_r);
+#else
+#define INIT_TMPNAM_R
+#endif
+
+#if SANITIZER_INTERCEPT_TEMPNAM
+INTERCEPTOR(char *, tempnam, char *dir, char *pfx) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, tempnam, dir, pfx);
+ if (dir) COMMON_INTERCEPTOR_READ_RANGE(ctx, dir, REAL(strlen)(dir) + 1);
+ if (pfx) COMMON_INTERCEPTOR_READ_RANGE(ctx, pfx, REAL(strlen)(pfx) + 1);
+ char *res = REAL(tempnam)(dir, pfx);
+ if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+#define INIT_TEMPNAM COMMON_INTERCEPT_FUNCTION(tempnam);
+#else
+#define INIT_TEMPNAM
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP
+INTERCEPTOR(int, pthread_setname_np, uptr thread, const char *name) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_setname_np, thread, name);
+ COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, name);
+ return REAL(pthread_setname_np)(thread, name);
+}
+#define INIT_PTHREAD_SETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_setname_np);
+#else
+#define INIT_PTHREAD_SETNAME_NP
+#endif
+
+#if SANITIZER_INTERCEPT_SINCOS
+INTERCEPTOR(void, sincos, double x, double *sin, double *cos) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sincos, x, sin, cos);
+ REAL(sincos)(x, sin, cos);
+ if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin));
+ if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos));
+}
+INTERCEPTOR(void, sincosf, float x, float *sin, float *cos) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sincosf, x, sin, cos);
+ REAL(sincosf)(x, sin, cos);
+ if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin));
+ if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos));
+}
+INTERCEPTOR(void, sincosl, long double x, long double *sin, long double *cos) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sincosl, x, sin, cos);
+ REAL(sincosl)(x, sin, cos);
+ if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin));
+ if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos));
+}
+#define INIT_SINCOS \
+ COMMON_INTERCEPT_FUNCTION(sincos); \
+ COMMON_INTERCEPT_FUNCTION(sincosf); \
+ COMMON_INTERCEPT_FUNCTION(sincosl);
+#else
+#define INIT_SINCOS
+#endif
+
+#if SANITIZER_INTERCEPT_REMQUO
+INTERCEPTOR(double, remquo, double x, double y, int *quo) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, remquo, x, y, quo);
+ double res = REAL(remquo)(x, y, quo);
+ if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo));
+ return res;
+}
+INTERCEPTOR(float, remquof, float x, float y, int *quo) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, remquof, x, y, quo);
+ float res = REAL(remquof)(x, y, quo);
+ if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo));
+ return res;
+}
+INTERCEPTOR(long double, remquol, long double x, long double y, int *quo) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, remquol, x, y, quo);
+ long double res = REAL(remquol)(x, y, quo);
+ if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo));
+ return res;
+}
+#define INIT_REMQUO \
+ COMMON_INTERCEPT_FUNCTION(remquo); \
+ COMMON_INTERCEPT_FUNCTION(remquof); \
+ COMMON_INTERCEPT_FUNCTION(remquol);
+#else
+#define INIT_REMQUO
+#endif
+
+#if SANITIZER_INTERCEPT_LGAMMA
+extern int signgam;
+INTERCEPTOR(double, lgamma, double x) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lgamma, x);
+ double res = REAL(lgamma)(x);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
+ return res;
+}
+INTERCEPTOR(float, lgammaf, float x) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lgammaf, x);
+ float res = REAL(lgammaf)(x);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
+ return res;
+}
+INTERCEPTOR(long double, lgammal, long double x) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lgammal, x);
+ long double res = REAL(lgammal)(x);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
+ return res;
+}
+#define INIT_LGAMMA \
+ COMMON_INTERCEPT_FUNCTION(lgamma); \
+ COMMON_INTERCEPT_FUNCTION(lgammaf); \
+ COMMON_INTERCEPT_FUNCTION(lgammal);
+#else
+#define INIT_LGAMMA
+#endif
+
+#if SANITIZER_INTERCEPT_LGAMMA_R
+INTERCEPTOR(double, lgamma_r, double x, int *signp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lgamma_r, x, signp);
+ double res = REAL(lgamma_r)(x, signp);
+ if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp));
+ return res;
+}
+INTERCEPTOR(float, lgammaf_r, float x, int *signp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lgammaf_r, x, signp);
+ float res = REAL(lgammaf_r)(x, signp);
+ if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp));
+ return res;
+}
+INTERCEPTOR(long double, lgammal_r, long double x, int *signp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lgammal_r, x, signp);
+ long double res = REAL(lgammal_r)(x, signp);
+ if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp));
+ return res;
+}
+#define INIT_LGAMMA_R \
+ COMMON_INTERCEPT_FUNCTION(lgamma_r); \
+ COMMON_INTERCEPT_FUNCTION(lgammaf_r); \
+ COMMON_INTERCEPT_FUNCTION(lgammal_r);
+#else
+#define INIT_LGAMMA_R
+#endif
+
+#if SANITIZER_INTERCEPT_DRAND48_R
+INTERCEPTOR(int, drand48_r, void *buffer, double *result) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, drand48_r, buffer, result);
+ int res = REAL(drand48_r)(buffer, result);
+ if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ return res;
+}
+INTERCEPTOR(int, lrand48_r, void *buffer, long *result) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lrand48_r, buffer, result);
+ int res = REAL(lrand48_r)(buffer, result);
+ if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ return res;
+}
+#define INIT_DRAND48_R \
+ COMMON_INTERCEPT_FUNCTION(drand48_r); \
+ COMMON_INTERCEPT_FUNCTION(lrand48_r);
+#else
+#define INIT_DRAND48_R
+#endif
+
+#if SANITIZER_INTERCEPT_GETLINE
+INTERCEPTOR(SSIZE_T, getline, char **lineptr, SIZE_T *n, void *stream) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getline, lineptr, n, stream);
+ SSIZE_T res = REAL(getline)(lineptr, n, stream);
+ if (res > 0) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1);
+ }
+ return res;
+}
+INTERCEPTOR(SSIZE_T, getdelim, char **lineptr, SIZE_T *n, int delim,
+ void *stream) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getdelim, lineptr, n, delim, stream);
+ SSIZE_T res = REAL(getdelim)(lineptr, n, delim, stream);
+ if (res > 0) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1);
+ }
+ return res;
+}
+#define INIT_GETLINE \
+ COMMON_INTERCEPT_FUNCTION(getline); \
+ COMMON_INTERCEPT_FUNCTION(getdelim);
+#else
+#define INIT_GETLINE
+#endif
+
#define SANITIZER_COMMON_INTERCEPTORS_INIT \
+ INIT_STRCMP; \
+ INIT_STRNCMP; \
INIT_STRCASECMP; \
INIT_STRNCASECMP; \
INIT_READ; \
INIT_PREAD; \
INIT_PREAD64; \
- INIT_PRCTL; \
+ INIT_READV; \
+ INIT_PREADV; \
+ INIT_PREADV64; \
INIT_WRITE; \
INIT_PWRITE; \
INIT_PWRITE64; \
+ INIT_WRITEV; \
+ INIT_PWRITEV; \
+ INIT_PWRITEV64; \
+ INIT_PRCTL; \
INIT_LOCALTIME_AND_FRIENDS; \
+ INIT_STRPTIME; \
INIT_SCANF; \
+ INIT_ISOC99_SCANF; \
INIT_FREXP; \
INIT_FREXPF_FREXPL; \
INIT_GETPWNAM_AND_FRIENDS; \
@@ -985,7 +2857,79 @@ INTERCEPTOR(int, getsockopt, int sockfd, int level, int optname, void *optval,
INIT_INET; \
INIT_PTHREAD_GETSCHEDPARAM; \
INIT_GETADDRINFO; \
+ INIT_GETNAMEINFO; \
INIT_GETSOCKNAME; \
INIT_GETHOSTBYNAME; \
INIT_GETHOSTBYNAME_R; \
- INIT_GETSOCKOPT;
+ INIT_GETSOCKOPT; \
+ INIT_ACCEPT; \
+ INIT_ACCEPT4; \
+ INIT_MODF; \
+ INIT_RECVMSG; \
+ INIT_GETPEERNAME; \
+ INIT_IOCTL; \
+ INIT_INET_ATON; \
+ INIT_SYSINFO; \
+ INIT_READDIR; \
+ INIT_READDIR64; \
+ INIT_PTRACE; \
+ INIT_SETLOCALE; \
+ INIT_GETCWD; \
+ INIT_GET_CURRENT_DIR_NAME; \
+ INIT_STRTOIMAX; \
+ INIT_MBSTOWCS; \
+ INIT_MBSNRTOWCS; \
+ INIT_WCSTOMBS; \
+ INIT_WCSNRTOMBS; \
+ INIT_TCGETATTR; \
+ INIT_REALPATH; \
+ INIT_CANONICALIZE_FILE_NAME; \
+ INIT_CONFSTR; \
+ INIT_SCHED_GETAFFINITY; \
+ INIT_STRERROR; \
+ INIT_STRERROR_R; \
+ INIT_SCANDIR; \
+ INIT_SCANDIR64; \
+ INIT_GETGROUPS; \
+ INIT_POLL; \
+ INIT_PPOLL; \
+ INIT_WORDEXP; \
+ INIT_SIGWAIT; \
+ INIT_SIGWAITINFO; \
+ INIT_SIGTIMEDWAIT; \
+ INIT_SIGSETOPS; \
+ INIT_SIGPENDING; \
+ INIT_SIGPROCMASK; \
+ INIT_BACKTRACE; \
+ INIT__EXIT; \
+ INIT_PTHREAD_MUTEX_LOCK; \
+ INIT_PTHREAD_MUTEX_UNLOCK; \
+ INIT_PTHREAD_COND_WAIT; \
+ INIT_PTHREAD_COND_INIT; \
+ INIT_PTHREAD_COND_SIGNAL; \
+ INIT_PTHREAD_COND_BROADCAST; \
+ INIT_GETMNTENT; \
+ INIT_GETMNTENT_R; \
+ INIT_STATFS; \
+ INIT_STATFS64; \
+ INIT_STATVFS; \
+ INIT_STATVFS64; \
+ INIT_INITGROUPS; \
+ INIT_ETHER; \
+ INIT_ETHER_R; \
+ INIT_SHMCTL; \
+ INIT_RANDOM_R; \
+ INIT_PTHREAD_ATTR_GET; \
+ INIT_PTHREAD_ATTR_GETINHERITSCHED; \
+ INIT_PTHREAD_ATTR_GETAFFINITY_NP; \
+ INIT_TMPNAM; \
+ INIT_TMPNAM_R; \
+ INIT_TEMPNAM; \
+ INIT_PTHREAD_SETNAME_NP; \
+ INIT_SINCOS; \
+ INIT_REMQUO; \
+ INIT_LGAMMA; \
+ INIT_LGAMMA_R; \
+ INIT_DRAND48_R; \
+ INIT_GETLINE; \
+/**/
diff --git a/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc b/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc
new file mode 100755
index 000000000000..4b90f8ca8a36
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc
@@ -0,0 +1,568 @@
+//===-- sanitizer_common_interceptors_ioctl.inc -----------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Ioctl handling in common sanitizer interceptors.
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_flags.h"
+
+struct ioctl_desc {
+ unsigned req;
+ // FIXME: support read+write arguments. Those are currently marked as WRITE.
+ enum {
+ NONE,
+ READ,
+ WRITE,
+ CUSTOM
+ } type : 2;
+ unsigned size : 30;
+ const char* name;
+};
+
+const unsigned ioctl_table_max = 500;
+static ioctl_desc ioctl_table[ioctl_table_max];
+static unsigned ioctl_table_size = 0;
+
+// This can not be declared as a global, because references to struct_*_sz
+// require a global initializer. And this table must be available before global
+// initializers are run.
+static void ioctl_table_fill() {
+#define _(rq, tp, sz) \
+ if (IOCTL_##rq != IOCTL_NOT_PRESENT) { \
+ CHECK(ioctl_table_size < ioctl_table_max); \
+ ioctl_table[ioctl_table_size].req = IOCTL_##rq; \
+ ioctl_table[ioctl_table_size].type = ioctl_desc::tp; \
+ ioctl_table[ioctl_table_size].size = sz; \
+ ioctl_table[ioctl_table_size].name = #rq; \
+ ++ioctl_table_size; \
+ }
+
+ _(FIOASYNC, READ, sizeof(int));
+ _(FIOCLEX, NONE, 0);
+ _(FIOGETOWN, WRITE, sizeof(int));
+ _(FIONBIO, READ, sizeof(int));
+ _(FIONCLEX, NONE, 0);
+ _(FIOSETOWN, READ, sizeof(int));
+ _(SIOCADDMULTI, READ, struct_ifreq_sz);
+ _(SIOCATMARK, WRITE, sizeof(int));
+ _(SIOCDELMULTI, READ, struct_ifreq_sz);
+ _(SIOCGIFADDR, WRITE, struct_ifreq_sz);
+ _(SIOCGIFBRDADDR, WRITE, struct_ifreq_sz);
+ _(SIOCGIFCONF, CUSTOM, 0);
+ _(SIOCGIFDSTADDR, WRITE, struct_ifreq_sz);
+ _(SIOCGIFFLAGS, WRITE, struct_ifreq_sz);
+ _(SIOCGIFMETRIC, WRITE, struct_ifreq_sz);
+ _(SIOCGIFMTU, WRITE, struct_ifreq_sz);
+ _(SIOCGIFNETMASK, WRITE, struct_ifreq_sz);
+ _(SIOCGPGRP, WRITE, sizeof(int));
+ _(SIOCSIFADDR, READ, struct_ifreq_sz);
+ _(SIOCSIFBRDADDR, READ, struct_ifreq_sz);
+ _(SIOCSIFDSTADDR, READ, struct_ifreq_sz);
+ _(SIOCSIFFLAGS, READ, struct_ifreq_sz);
+ _(SIOCSIFMETRIC, READ, struct_ifreq_sz);
+ _(SIOCSIFMTU, READ, struct_ifreq_sz);
+ _(SIOCSIFNETMASK, READ, struct_ifreq_sz);
+ _(SIOCSPGRP, READ, sizeof(int));
+ _(TIOCCONS, NONE, 0);
+ _(TIOCEXCL, NONE, 0);
+ _(TIOCGETD, WRITE, sizeof(int));
+ _(TIOCGPGRP, WRITE, pid_t_sz);
+ _(TIOCGWINSZ, WRITE, struct_winsize_sz);
+ _(TIOCMBIC, READ, sizeof(int));
+ _(TIOCMBIS, READ, sizeof(int));
+ _(TIOCMGET, WRITE, sizeof(int));
+ _(TIOCMSET, READ, sizeof(int));
+ _(TIOCNOTTY, NONE, 0);
+ _(TIOCNXCL, NONE, 0);
+ _(TIOCOUTQ, WRITE, sizeof(int));
+ _(TIOCPKT, READ, sizeof(int));
+ _(TIOCSCTTY, NONE, 0);
+ _(TIOCSETD, READ, sizeof(int));
+ _(TIOCSPGRP, READ, pid_t_sz);
+ _(TIOCSTI, READ, sizeof(char));
+ _(TIOCSWINSZ, READ, struct_winsize_sz);
+
+#if (SANITIZER_LINUX && !SANITIZER_ANDROID)
+ _(SIOCGETSGCNT, WRITE, struct_sioc_sg_req_sz);
+ _(SIOCGETVIFCNT, WRITE, struct_sioc_vif_req_sz);
+#endif
+
+#if SANITIZER_LINUX
+ // Conflicting request ids.
+ // _(CDROMAUDIOBUFSIZ, NONE, 0);
+ // _(SNDCTL_TMR_CONTINUE, NONE, 0);
+ // _(SNDCTL_TMR_START, NONE, 0);
+ // _(SNDCTL_TMR_STOP, NONE, 0);
+ // _(SOUND_MIXER_READ_LOUD, WRITE, sizeof(int)); // same as ...READ_ENHANCE
+ // _(SOUND_MIXER_READ_MUTE, WRITE, sizeof(int)); // same as ...READ_ENHANCE
+ // _(SOUND_MIXER_WRITE_LOUD, WRITE, sizeof(int)); // same as ...WRITE_ENHANCE
+ // _(SOUND_MIXER_WRITE_MUTE, WRITE, sizeof(int)); // same as ...WRITE_ENHANCE
+ _(BLKFLSBUF, NONE, 0);
+ _(BLKGETSIZE, WRITE, sizeof(uptr));
+ _(BLKRAGET, WRITE, sizeof(int));
+ _(BLKRASET, NONE, 0);
+ _(BLKROGET, WRITE, sizeof(int));
+ _(BLKROSET, READ, sizeof(int));
+ _(BLKRRPART, NONE, 0);
+ _(CDROMEJECT, NONE, 0);
+ _(CDROMEJECT_SW, NONE, 0);
+ _(CDROMMULTISESSION, WRITE, struct_cdrom_multisession_sz);
+ _(CDROMPAUSE, NONE, 0);
+ _(CDROMPLAYMSF, READ, struct_cdrom_msf_sz);
+ _(CDROMPLAYTRKIND, READ, struct_cdrom_ti_sz);
+ _(CDROMREADAUDIO, READ, struct_cdrom_read_audio_sz);
+ _(CDROMREADCOOKED, READ, struct_cdrom_msf_sz);
+ _(CDROMREADMODE1, READ, struct_cdrom_msf_sz);
+ _(CDROMREADMODE2, READ, struct_cdrom_msf_sz);
+ _(CDROMREADRAW, READ, struct_cdrom_msf_sz);
+ _(CDROMREADTOCENTRY, WRITE, struct_cdrom_tocentry_sz);
+ _(CDROMREADTOCHDR, WRITE, struct_cdrom_tochdr_sz);
+ _(CDROMRESET, NONE, 0);
+ _(CDROMRESUME, NONE, 0);
+ _(CDROMSEEK, READ, struct_cdrom_msf_sz);
+ _(CDROMSTART, NONE, 0);
+ _(CDROMSTOP, NONE, 0);
+ _(CDROMSUBCHNL, WRITE, struct_cdrom_subchnl_sz);
+ _(CDROMVOLCTRL, READ, struct_cdrom_volctrl_sz);
+ _(CDROMVOLREAD, WRITE, struct_cdrom_volctrl_sz);
+ _(CDROM_GET_UPC, WRITE, 8);
+ _(EVIOCGABS, WRITE, struct_input_absinfo_sz); // fixup
+ _(EVIOCGBIT, WRITE, struct_input_id_sz); // fixup
+ _(EVIOCGEFFECTS, WRITE, sizeof(int));
+ _(EVIOCGID, WRITE, struct_input_id_sz);
+ _(EVIOCGKEY, WRITE, 0);
+ _(EVIOCGKEYCODE, WRITE, sizeof(int) * 2);
+ _(EVIOCGLED, WRITE, 0);
+ _(EVIOCGNAME, WRITE, 0);
+ _(EVIOCGPHYS, WRITE, 0);
+ _(EVIOCGRAB, READ, sizeof(int));
+ _(EVIOCGREP, WRITE, sizeof(int) * 2);
+ _(EVIOCGSND, WRITE, 0);
+ _(EVIOCGSW, WRITE, 0);
+ _(EVIOCGUNIQ, WRITE, 0);
+ _(EVIOCGVERSION, WRITE, sizeof(int));
+ _(EVIOCRMFF, READ, sizeof(int));
+ _(EVIOCSABS, READ, struct_input_absinfo_sz); // fixup
+ _(EVIOCSFF, READ, struct_ff_effect_sz);
+ _(EVIOCSKEYCODE, READ, sizeof(int) * 2);
+ _(EVIOCSREP, READ, sizeof(int) * 2);
+ _(FDCLRPRM, NONE, 0);
+ _(FDDEFPRM, READ, struct_floppy_struct_sz);
+ _(FDFLUSH, NONE, 0);
+ _(FDFMTBEG, NONE, 0);
+ _(FDFMTEND, NONE, 0);
+ _(FDFMTTRK, READ, struct_format_descr_sz);
+ _(FDGETDRVPRM, WRITE, struct_floppy_drive_params_sz);
+ _(FDGETDRVSTAT, WRITE, struct_floppy_drive_struct_sz);
+ _(FDGETDRVTYP, WRITE, 16);
+ _(FDGETFDCSTAT, WRITE, struct_floppy_fdc_state_sz);
+ _(FDGETMAXERRS, WRITE, struct_floppy_max_errors_sz);
+ _(FDGETPRM, WRITE, struct_floppy_struct_sz);
+ _(FDMSGOFF, NONE, 0);
+ _(FDMSGON, NONE, 0);
+ _(FDPOLLDRVSTAT, WRITE, struct_floppy_drive_struct_sz);
+ _(FDRAWCMD, WRITE, struct_floppy_raw_cmd_sz);
+ _(FDRESET, NONE, 0);
+ _(FDSETDRVPRM, READ, struct_floppy_drive_params_sz);
+ _(FDSETEMSGTRESH, NONE, 0);
+ _(FDSETMAXERRS, READ, struct_floppy_max_errors_sz);
+ _(FDSETPRM, READ, struct_floppy_struct_sz);
+ _(FDTWADDLE, NONE, 0);
+ _(FDWERRORCLR, NONE, 0);
+ _(FDWERRORGET, WRITE, struct_floppy_write_errors_sz);
+ _(HDIO_DRIVE_CMD, WRITE, sizeof(int));
+ _(HDIO_GETGEO, WRITE, struct_hd_geometry_sz);
+ _(HDIO_GET_32BIT, WRITE, sizeof(int));
+ _(HDIO_GET_DMA, WRITE, sizeof(int));
+ _(HDIO_GET_IDENTITY, WRITE, struct_hd_driveid_sz);
+ _(HDIO_GET_KEEPSETTINGS, WRITE, sizeof(int));
+ _(HDIO_GET_MULTCOUNT, WRITE, sizeof(int));
+ _(HDIO_GET_NOWERR, WRITE, sizeof(int));
+ _(HDIO_GET_UNMASKINTR, WRITE, sizeof(int));
+ _(HDIO_SET_32BIT, NONE, 0);
+ _(HDIO_SET_DMA, NONE, 0);
+ _(HDIO_SET_KEEPSETTINGS, NONE, 0);
+ _(HDIO_SET_MULTCOUNT, NONE, 0);
+ _(HDIO_SET_NOWERR, NONE, 0);
+ _(HDIO_SET_UNMASKINTR, NONE, 0);
+ _(MTIOCGET, WRITE, struct_mtget_sz);
+ _(MTIOCPOS, WRITE, struct_mtpos_sz);
+ _(MTIOCTOP, READ, struct_mtop_sz);
+ _(PPPIOCGASYNCMAP, WRITE, sizeof(int));
+ _(PPPIOCGDEBUG, WRITE, sizeof(int));
+ _(PPPIOCGFLAGS, WRITE, sizeof(int));
+ _(PPPIOCGUNIT, WRITE, sizeof(int));
+ _(PPPIOCGXASYNCMAP, WRITE, sizeof(int) * 8);
+ _(PPPIOCSASYNCMAP, READ, sizeof(int));
+ _(PPPIOCSDEBUG, READ, sizeof(int));
+ _(PPPIOCSFLAGS, READ, sizeof(int));
+ _(PPPIOCSMAXCID, READ, sizeof(int));
+ _(PPPIOCSMRU, READ, sizeof(int));
+ _(PPPIOCSXASYNCMAP, READ, sizeof(int) * 8);
+ _(SIOCADDRT, READ, struct_rtentry_sz);
+ _(SIOCDARP, READ, struct_arpreq_sz);
+ _(SIOCDELRT, READ, struct_rtentry_sz);
+ _(SIOCDRARP, READ, struct_arpreq_sz);
+ _(SIOCGARP, WRITE, struct_arpreq_sz);
+ _(SIOCGIFENCAP, WRITE, sizeof(int));
+ _(SIOCGIFHWADDR, WRITE, struct_ifreq_sz);
+ _(SIOCGIFMAP, WRITE, struct_ifreq_sz);
+ _(SIOCGIFMEM, WRITE, struct_ifreq_sz);
+ _(SIOCGIFNAME, NONE, 0);
+ _(SIOCGIFSLAVE, NONE, 0);
+ _(SIOCGRARP, WRITE, struct_arpreq_sz);
+ _(SIOCGSTAMP, WRITE, timeval_sz);
+ _(SIOCSARP, READ, struct_arpreq_sz);
+ _(SIOCSIFENCAP, READ, sizeof(int));
+ _(SIOCSIFHWADDR, READ, struct_ifreq_sz);
+ _(SIOCSIFLINK, NONE, 0);
+ _(SIOCSIFMAP, READ, struct_ifreq_sz);
+ _(SIOCSIFMEM, READ, struct_ifreq_sz);
+ _(SIOCSIFSLAVE, NONE, 0);
+ _(SIOCSRARP, READ, struct_arpreq_sz);
+ _(SNDCTL_COPR_HALT, WRITE, struct_copr_debug_buf_sz);
+ _(SNDCTL_COPR_LOAD, READ, struct_copr_buffer_sz);
+ _(SNDCTL_COPR_RCODE, WRITE, struct_copr_debug_buf_sz);
+ _(SNDCTL_COPR_RCVMSG, WRITE, struct_copr_msg_sz);
+ _(SNDCTL_COPR_RDATA, WRITE, struct_copr_debug_buf_sz);
+ _(SNDCTL_COPR_RESET, NONE, 0);
+ _(SNDCTL_COPR_RUN, WRITE, struct_copr_debug_buf_sz);
+ _(SNDCTL_COPR_SENDMSG, READ, struct_copr_msg_sz);
+ _(SNDCTL_COPR_WCODE, READ, struct_copr_debug_buf_sz);
+ _(SNDCTL_COPR_WDATA, READ, struct_copr_debug_buf_sz);
+ _(SNDCTL_DSP_GETBLKSIZE, WRITE, sizeof(int));
+ _(SNDCTL_DSP_GETFMTS, WRITE, sizeof(int));
+ _(SNDCTL_DSP_NONBLOCK, NONE, 0);
+ _(SNDCTL_DSP_POST, NONE, 0);
+ _(SNDCTL_DSP_RESET, NONE, 0);
+ _(SNDCTL_DSP_SETFMT, WRITE, sizeof(int));
+ _(SNDCTL_DSP_SETFRAGMENT, WRITE, sizeof(int));
+ _(SNDCTL_DSP_SPEED, WRITE, sizeof(int));
+ _(SNDCTL_DSP_STEREO, WRITE, sizeof(int));
+ _(SNDCTL_DSP_SUBDIVIDE, WRITE, sizeof(int));
+ _(SNDCTL_DSP_SYNC, NONE, 0);
+ _(SNDCTL_FM_4OP_ENABLE, READ, sizeof(int));
+ _(SNDCTL_FM_LOAD_INSTR, READ, struct_sbi_instrument_sz);
+ _(SNDCTL_MIDI_INFO, WRITE, struct_midi_info_sz);
+ _(SNDCTL_MIDI_PRETIME, WRITE, sizeof(int));
+ _(SNDCTL_SEQ_CTRLRATE, WRITE, sizeof(int));
+ _(SNDCTL_SEQ_GETINCOUNT, WRITE, sizeof(int));
+ _(SNDCTL_SEQ_GETOUTCOUNT, WRITE, sizeof(int));
+ _(SNDCTL_SEQ_NRMIDIS, WRITE, sizeof(int));
+ _(SNDCTL_SEQ_NRSYNTHS, WRITE, sizeof(int));
+ _(SNDCTL_SEQ_OUTOFBAND, READ, struct_seq_event_rec_sz);
+ _(SNDCTL_SEQ_PANIC, NONE, 0);
+ _(SNDCTL_SEQ_PERCMODE, NONE, 0);
+ _(SNDCTL_SEQ_RESET, NONE, 0);
+ _(SNDCTL_SEQ_RESETSAMPLES, READ, sizeof(int));
+ _(SNDCTL_SEQ_SYNC, NONE, 0);
+ _(SNDCTL_SEQ_TESTMIDI, READ, sizeof(int));
+ _(SNDCTL_SEQ_THRESHOLD, READ, sizeof(int));
+ _(SNDCTL_SYNTH_INFO, WRITE, struct_synth_info_sz);
+ _(SNDCTL_SYNTH_MEMAVL, WRITE, sizeof(int));
+ _(SNDCTL_TMR_METRONOME, READ, sizeof(int));
+ _(SNDCTL_TMR_SELECT, WRITE, sizeof(int));
+ _(SNDCTL_TMR_SOURCE, WRITE, sizeof(int));
+ _(SNDCTL_TMR_TEMPO, WRITE, sizeof(int));
+ _(SNDCTL_TMR_TIMEBASE, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_ALTPCM, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_BASS, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_CAPS, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_CD, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_DEVMASK, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_ENHANCE, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_IGAIN, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_IMIX, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_LINE, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_LINE1, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_LINE2, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_LINE3, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_MIC, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_OGAIN, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_PCM, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_RECLEV, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_RECMASK, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_RECSRC, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_SPEAKER, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_STEREODEVS, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_SYNTH, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_TREBLE, WRITE, sizeof(int));
+ _(SOUND_MIXER_READ_VOLUME, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_ALTPCM, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_BASS, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_CD, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_ENHANCE, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_IGAIN, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_IMIX, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_LINE, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_LINE1, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_LINE2, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_LINE3, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_MIC, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_OGAIN, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_PCM, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_RECLEV, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_RECSRC, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_SPEAKER, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_SYNTH, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_TREBLE, WRITE, sizeof(int));
+ _(SOUND_MIXER_WRITE_VOLUME, WRITE, sizeof(int));
+ _(SOUND_PCM_READ_BITS, WRITE, sizeof(int));
+ _(SOUND_PCM_READ_CHANNELS, WRITE, sizeof(int));
+ _(SOUND_PCM_READ_FILTER, WRITE, sizeof(int));
+ _(SOUND_PCM_READ_RATE, WRITE, sizeof(int));
+ _(SOUND_PCM_WRITE_CHANNELS, WRITE, sizeof(int));
+ _(SOUND_PCM_WRITE_FILTER, WRITE, sizeof(int));
+ _(TCFLSH, NONE, 0);
+ _(TCGETA, WRITE, struct_termio_sz);
+ _(TCGETS, WRITE, struct_termios_sz);
+ _(TCSBRK, NONE, 0);
+ _(TCSBRKP, NONE, 0);
+ _(TCSETA, READ, struct_termio_sz);
+ _(TCSETAF, READ, struct_termio_sz);
+ _(TCSETAW, READ, struct_termio_sz);
+ _(TCSETS, READ, struct_termios_sz);
+ _(TCSETSF, READ, struct_termios_sz);
+ _(TCSETSW, READ, struct_termios_sz);
+ _(TCXONC, NONE, 0);
+ _(TIOCGLCKTRMIOS, WRITE, struct_termios_sz);
+ _(TIOCGSOFTCAR, WRITE, sizeof(int));
+ _(TIOCINQ, WRITE, sizeof(int));
+ _(TIOCLINUX, READ, sizeof(char));
+ _(TIOCSERCONFIG, NONE, 0);
+ _(TIOCSERGETLSR, WRITE, sizeof(int));
+ _(TIOCSERGWILD, WRITE, sizeof(int));
+ _(TIOCSERSWILD, READ, sizeof(int));
+ _(TIOCSLCKTRMIOS, READ, struct_termios_sz);
+ _(TIOCSSOFTCAR, READ, sizeof(int));
+ _(VT_ACTIVATE, NONE, 0);
+ _(VT_DISALLOCATE, NONE, 0);
+ _(VT_GETMODE, WRITE, struct_vt_mode_sz);
+ _(VT_GETSTATE, WRITE, struct_vt_stat_sz);
+ _(VT_OPENQRY, WRITE, sizeof(int));
+ _(VT_RELDISP, NONE, 0);
+ _(VT_RESIZE, READ, struct_vt_sizes_sz);
+ _(VT_RESIZEX, READ, struct_vt_consize_sz);
+ _(VT_SENDSIG, NONE, 0);
+ _(VT_SETMODE, READ, struct_vt_mode_sz);
+ _(VT_WAITACTIVE, NONE, 0);
+#endif
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ // _(SIOCDEVPLIP, WRITE, struct_ifreq_sz); // the same as EQL_ENSLAVE
+ _(CYGETDEFTHRESH, WRITE, sizeof(int));
+ _(CYGETDEFTIMEOUT, WRITE, sizeof(int));
+ _(CYGETMON, WRITE, struct_cyclades_monitor_sz);
+ _(CYGETTHRESH, WRITE, sizeof(int));
+ _(CYGETTIMEOUT, WRITE, sizeof(int));
+ _(CYSETDEFTHRESH, NONE, 0);
+ _(CYSETDEFTIMEOUT, NONE, 0);
+ _(CYSETTHRESH, NONE, 0);
+ _(CYSETTIMEOUT, NONE, 0);
+ _(EQL_EMANCIPATE, WRITE, struct_ifreq_sz);
+ _(EQL_ENSLAVE, WRITE, struct_ifreq_sz);
+ _(EQL_GETMASTRCFG, WRITE, struct_ifreq_sz);
+ _(EQL_GETSLAVECFG, WRITE, struct_ifreq_sz);
+ _(EQL_SETMASTRCFG, WRITE, struct_ifreq_sz);
+ _(EQL_SETSLAVECFG, WRITE, struct_ifreq_sz);
+ _(EVIOCGKEYCODE_V2, WRITE, struct_input_keymap_entry_sz);
+ _(EVIOCGPROP, WRITE, 0);
+ _(EVIOCSKEYCODE_V2, READ, struct_input_keymap_entry_sz);
+ _(FS_IOC_GETFLAGS, WRITE, sizeof(int));
+ _(FS_IOC_GETVERSION, WRITE, sizeof(int));
+ _(FS_IOC_SETFLAGS, READ, sizeof(int));
+ _(FS_IOC_SETVERSION, READ, sizeof(int));
+ _(GIO_CMAP, WRITE, 48);
+ _(GIO_FONT, WRITE, 8192);
+ _(GIO_SCRNMAP, WRITE, e_tabsz);
+ _(GIO_UNIMAP, WRITE, struct_unimapdesc_sz);
+ _(GIO_UNISCRNMAP, WRITE, sizeof(short) * e_tabsz);
+ _(KDADDIO, NONE, 0);
+ _(KDDELIO, NONE, 0);
+ _(KDDISABIO, NONE, 0);
+ _(KDENABIO, NONE, 0);
+ _(KDGETKEYCODE, WRITE, struct_kbkeycode_sz);
+ _(KDGETLED, WRITE, 1);
+ _(KDGETMODE, WRITE, sizeof(int));
+ _(KDGKBDIACR, WRITE, struct_kbdiacrs_sz);
+ _(KDGKBENT, WRITE, struct_kbentry_sz);
+ _(KDGKBLED, WRITE, sizeof(int));
+ _(KDGKBMETA, WRITE, sizeof(int));
+ _(KDGKBMODE, WRITE, sizeof(int));
+ _(KDGKBSENT, WRITE, struct_kbsentry_sz);
+ _(KDGKBTYPE, WRITE, 1);
+ _(KDMAPDISP, NONE, 0);
+ _(KDMKTONE, NONE, 0);
+ _(KDSETKEYCODE, READ, struct_kbkeycode_sz);
+ _(KDSETLED, NONE, 0);
+ _(KDSETMODE, NONE, 0);
+ _(KDSIGACCEPT, NONE, 0);
+ _(KDSKBDIACR, READ, struct_kbdiacrs_sz);
+ _(KDSKBENT, READ, struct_kbentry_sz);
+ _(KDSKBLED, NONE, 0);
+ _(KDSKBMETA, NONE, 0);
+ _(KDSKBMODE, NONE, 0);
+ _(KDSKBSENT, READ, struct_kbsentry_sz);
+ _(KDUNMAPDISP, NONE, 0);
+ _(KIOCSOUND, NONE, 0);
+ _(LPABORT, NONE, 0);
+ _(LPABORTOPEN, NONE, 0);
+ _(LPCAREFUL, NONE, 0);
+ _(LPCHAR, NONE, 0);
+ _(LPGETIRQ, WRITE, sizeof(int));
+ _(LPGETSTATUS, WRITE, sizeof(int));
+ _(LPRESET, NONE, 0);
+ _(LPSETIRQ, NONE, 0);
+ _(LPTIME, NONE, 0);
+ _(LPWAIT, NONE, 0);
+ _(MTIOCGETCONFIG, WRITE, struct_mtconfiginfo_sz);
+ _(MTIOCSETCONFIG, READ, struct_mtconfiginfo_sz);
+ _(PIO_CMAP, NONE, 0);
+ _(PIO_FONT, READ, 8192);
+ _(PIO_SCRNMAP, READ, e_tabsz);
+ _(PIO_UNIMAP, READ, struct_unimapdesc_sz);
+ _(PIO_UNIMAPCLR, READ, struct_unimapinit_sz);
+ _(PIO_UNISCRNMAP, READ, sizeof(short) * e_tabsz);
+ _(SCSI_IOCTL_PROBE_HOST, READ, sizeof(int));
+ _(SCSI_IOCTL_TAGGED_DISABLE, NONE, 0);
+ _(SCSI_IOCTL_TAGGED_ENABLE, NONE, 0);
+ _(SNDCTL_DSP_GETISPACE, WRITE, struct_audio_buf_info_sz);
+ _(SNDCTL_DSP_GETOSPACE, WRITE, struct_audio_buf_info_sz);
+ _(TIOCGSERIAL, WRITE, struct_serial_struct_sz);
+ _(TIOCSERGETMULTI, WRITE, struct_serial_multiport_struct_sz);
+ _(TIOCSERSETMULTI, READ, struct_serial_multiport_struct_sz);
+ _(TIOCSSERIAL, READ, struct_serial_struct_sz);
+
+ // The following ioctl requests are shared between AX25, IPX, netrom and
+ // mrouted.
+ // _(SIOCAIPXITFCRT, READ, sizeof(char));
+ // _(SIOCAX25GETUID, READ, struct_sockaddr_ax25_sz);
+ // _(SIOCNRGETPARMS, WRITE, struct_nr_parms_struct_sz);
+ // _(SIOCAIPXPRISLT, READ, sizeof(char));
+ // _(SIOCNRSETPARMS, READ, struct_nr_parms_struct_sz);
+ // _(SIOCAX25ADDUID, READ, struct_sockaddr_ax25_sz);
+ // _(SIOCNRDECOBS, NONE, 0);
+ // _(SIOCAX25DELUID, READ, struct_sockaddr_ax25_sz);
+ // _(SIOCIPXCFGDATA, WRITE, struct_ipx_config_data_sz);
+ // _(SIOCAX25NOUID, READ, sizeof(int));
+ // _(SIOCNRRTCTL, READ, sizeof(int));
+ // _(SIOCAX25DIGCTL, READ, sizeof(int));
+ // _(SIOCAX25GETPARMS, WRITE, struct_ax25_parms_struct_sz);
+ // _(SIOCAX25SETPARMS, READ, struct_ax25_parms_struct_sz);
+#endif
+#undef _
+}
+
+static bool ioctl_initialized = false;
+
+struct ioctl_desc_compare {
+ bool operator()(const ioctl_desc& left, const ioctl_desc& right) const {
+ return left.req < right.req;
+ }
+};
+
+static void ioctl_init() {
+ ioctl_table_fill();
+ InternalSort(&ioctl_table, ioctl_table_size, ioctl_desc_compare());
+
+ bool bad = false;
+ for (unsigned i = 0; i < ioctl_table_size - 1; ++i) {
+ if (ioctl_table[i].req >= ioctl_table[i + 1].req) {
+ Printf("Duplicate or unsorted ioctl request id %x >= %x (%s vs %s)\n",
+ ioctl_table[i].req, ioctl_table[i + 1].req, ioctl_table[i].name,
+ ioctl_table[i + 1].name);
+ bad = true;
+ }
+ }
+
+ if (bad) Die();
+
+ ioctl_initialized = true;
+}
+
+// Handle the most evil ioctls that encode argument value as part of request id.
+static unsigned ioctl_request_fixup(unsigned req) {
+#if SANITIZER_LINUX
+ if ((req & ~0x3fff001fU) == IOCTL_EVIOCGBIT)
+ return IOCTL_EVIOCGBIT;
+ if ((req & ~0x3fU) == IOCTL_EVIOCGABS)
+ return IOCTL_EVIOCGABS;
+ if ((req & ~0x3fU) == IOCTL_EVIOCSABS)
+ return IOCTL_EVIOCSABS;
+#endif
+ return req;
+}
+
+static const ioctl_desc *ioctl_table_lookup(unsigned req) {
+ int left = 0;
+ int right = ioctl_table_size;
+ while (left < right) {
+ int mid = (left + right) / 2;
+ if (ioctl_table[mid].req < req)
+ left = mid + 1;
+ else
+ right = mid;
+ }
+ if (left == right && ioctl_table[left].req == req)
+ return ioctl_table + left;
+ else
+ return 0;
+}
+
+static const ioctl_desc *ioctl_lookup(unsigned req) {
+ req = ioctl_request_fixup(req);
+ const ioctl_desc *desc = ioctl_table_lookup(req);
+ if (desc) return desc;
+
+ // Try stripping access size from the request id.
+ desc = ioctl_table_lookup(req & ~0x3fff0000U);
+ // Sanity check: requests that encode access size are either read or write and
+ // have size of 0 in the table.
+ if (desc && desc->size == 0 &&
+ (desc->type == ioctl_desc::WRITE || desc->type == ioctl_desc::READ))
+ return desc;
+ return 0;
+}
+
+static void ioctl_common_pre(void *ctx, const ioctl_desc *desc, int d,
+ unsigned request, void *arg) {
+ if (desc->type == ioctl_desc::READ) {
+ unsigned size = desc->size ? desc->size : IOC_SIZE(request);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, arg, size);
+ }
+ if (desc->type != ioctl_desc::CUSTOM)
+ return;
+ switch (request) {
+ case 0x00008912: { // SIOCGIFCONF
+ struct __sanitizer_ifconf *ifc = (__sanitizer_ifconf *)arg;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &ifc->ifc_len, sizeof(ifc->ifc_len));
+ break;
+ }
+ }
+ return;
+}
+
+static void ioctl_common_post(void *ctx, const ioctl_desc *desc, int res, int d,
+ unsigned request, void *arg) {
+ if (desc->type == ioctl_desc::WRITE) {
+ // FIXME: add verbose output
+ unsigned size = desc->size ? desc->size : IOC_SIZE(request);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, arg, size);
+ }
+ if (desc->type != ioctl_desc::CUSTOM)
+ return;
+ switch (request) {
+ case 0x00008912: { // SIOCGIFCONF
+ struct __sanitizer_ifconf *ifc = (__sanitizer_ifconf *)arg;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifc->ifc_ifcu.ifcu_req, ifc->ifc_len);
+ break;
+ }
+ }
+ return;
+}
diff --git a/lib/sanitizer_common/sanitizer_common_interceptors_scanf.inc b/lib/sanitizer_common/sanitizer_common_interceptors_scanf.inc
index 8bb5cd818ac2..08752e6a3b88 100644
--- a/lib/sanitizer_common/sanitizer_common_interceptors_scanf.inc
+++ b/lib/sanitizer_common/sanitizer_common_interceptors_scanf.inc
@@ -278,7 +278,7 @@ static void scanf_common(void *ctx, int n_inputs, bool allowGnuMalloc,
CHECK_GT(n_inputs, 0);
const char *p = format;
- while (*p && n_inputs) {
+ while (*p) {
ScanfDirective dir;
p = scanf_parse_next(p, allowGnuMalloc, &dir);
if (!p)
@@ -301,6 +301,8 @@ static void scanf_common(void *ctx, int n_inputs, bool allowGnuMalloc,
void *argp = va_arg(aq, void *);
if (dir.convSpecifier != 'n')
--n_inputs;
+ if (n_inputs < 0)
+ break;
if (size == SSS_STRLEN) {
size = internal_strlen((const char *)argp) + 1;
}
diff --git a/lib/sanitizer_common/sanitizer_common_libcdep.cc b/lib/sanitizer_common/sanitizer_common_libcdep.cc
index 36f6cf0bc0db..f3430074eb0f 100644
--- a/lib/sanitizer_common/sanitizer_common_libcdep.cc
+++ b/lib/sanitizer_common/sanitizer_common_libcdep.cc
@@ -17,7 +17,21 @@ namespace __sanitizer {
bool PrintsToTty() {
MaybeOpenReportFile();
- return internal_isatty(report_fd);
+ return internal_isatty(report_fd) != 0;
}
+bool PrintsToTtyCached() {
+ // FIXME: Add proper Windows support to AnsiColorDecorator and re-enable color
+ // printing on Windows.
+ if (SANITIZER_WINDOWS)
+ return 0;
+
+ static int cached = 0;
+ static bool prints_to_tty;
+ if (!cached) { // Not thread-safe.
+ prints_to_tty = PrintsToTty();
+ cached = 1;
+ }
+ return prints_to_tty;
+}
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_common_syscalls.inc b/lib/sanitizer_common/sanitizer_common_syscalls.inc
index da25e6b6ad2c..958f12f84393 100644
--- a/lib/sanitizer_common/sanitizer_common_syscalls.inc
+++ b/lib/sanitizer_common/sanitizer_common_syscalls.inc
@@ -25,18 +25,41 @@
// COMMON_SYSCALL_POST_WRITE_RANGE
// Called in posthook for regions that were written to by the kernel
// and are now initialized.
+// COMMON_SYSCALL_FD_CLOSE(fd)
+// Called before closing file descriptor fd.
+// COMMON_SYSCALL_PRE_FORK()
+// Called before fork syscall.
+// COMMON_SYSCALL_POST_FORK(long res)
+// Called after fork syscall.
//===----------------------------------------------------------------------===//
+#include "sanitizer_platform.h"
+#if SANITIZER_LINUX
+
+#include "sanitizer_libc.h"
+
#define PRE_SYSCALL(name) \
- SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_pre_##name
+ SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_pre_impl_##name
#define PRE_READ(p, s) COMMON_SYSCALL_PRE_READ_RANGE(p, s)
#define PRE_WRITE(p, s) COMMON_SYSCALL_PRE_WRITE_RANGE(p, s)
#define POST_SYSCALL(name) \
- SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_post_##name
+ SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_post_impl_##name
#define POST_READ(p, s) COMMON_SYSCALL_POST_READ_RANGE(p, s)
#define POST_WRITE(p, s) COMMON_SYSCALL_POST_WRITE_RANGE(p, s)
+#ifndef COMMON_SYSCALL_FD_CLOSE
+# define COMMON_SYSCALL_FD_CLOSE(fd)
+#endif
+
+#ifndef COMMON_SYSCALL_PRE_FORK
+# define COMMON_SYSCALL_PRE_FORK()
+#endif
+
+#ifndef COMMON_SYSCALL_POST_FORK
+# define COMMON_SYSCALL_POST_FORK(res)
+#endif
+
// FIXME: do some kind of PRE_READ for all syscall arguments (int(s) and such).
extern "C" {
@@ -55,6 +78,16 @@ struct sanitizer_kernel_msghdr {
unsigned msg_flags;
};
+struct sanitizer_kernel_mmsghdr {
+ struct sanitizer_kernel_msghdr msg_hdr;
+ unsigned msg_len;
+};
+
+struct sanitizer_kernel_timespec {
+ long tv_sec;
+ long tv_nsec;
+};
+
struct sanitizer_kernel_timeval {
long tv_sec;
long tv_usec;
@@ -65,79 +98,2683 @@ struct sanitizer_kernel_rusage {
long ru_long[14];
};
-PRE_SYSCALL(recvmsg)(int sockfd, struct sanitizer_kernel_msghdr *msg,
- int flags) {
+struct sanitizer_kernel_sockaddr {
+ unsigned short sa_family;
+ char sa_data[14];
+};
+
+// Real sigset size is always passed as a syscall argument.
+// Declare it "void" to catch sizeof(kernel_sigset_t).
+typedef void kernel_sigset_t;
+
+static void kernel_write_iovec(const __sanitizer_iovec *iovec,
+ SIZE_T iovlen, SIZE_T maxlen) {
+ for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
+ SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
+ POST_WRITE(iovec[i].iov_base, sz);
+ maxlen -= sz;
+ }
+}
+
+// This functions uses POST_READ, because it needs to run after syscall to know
+// the real read range.
+static void kernel_read_iovec(const __sanitizer_iovec *iovec,
+ SIZE_T iovlen, SIZE_T maxlen) {
+ POST_READ(iovec, sizeof(*iovec) * iovlen);
+ for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
+ SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
+ POST_READ(iovec[i].iov_base, sz);
+ maxlen -= sz;
+ }
+}
+
+PRE_SYSCALL(recvmsg)(long sockfd, sanitizer_kernel_msghdr *msg, long flags) {
PRE_READ(msg, sizeof(*msg));
}
-POST_SYSCALL(recvmsg)(long res, int sockfd, struct sanitizer_kernel_msghdr *msg,
- int flags) {
- if (res > 0)
- for (unsigned long i = 0; i < msg->msg_iovlen; ++i) {
- POST_WRITE(msg->msg_iov[i].iov_base, msg->msg_iov[i].iov_len);
+POST_SYSCALL(recvmsg)(long res, long sockfd, sanitizer_kernel_msghdr *msg,
+ long flags) {
+ if (res >= 0) {
+ if (msg) {
+ for (unsigned long i = 0; i < msg->msg_iovlen; ++i) {
+ POST_WRITE(msg->msg_iov[i].iov_base, msg->msg_iov[i].iov_len);
+ }
+ POST_WRITE(msg->msg_control, msg->msg_controllen);
}
- POST_WRITE(msg->msg_control, msg->msg_controllen);
+ }
+}
+
+PRE_SYSCALL(recvmmsg)(long fd, sanitizer_kernel_mmsghdr *msg, long vlen,
+ long flags, void *timeout) {
+ PRE_READ(msg, vlen * sizeof(*msg));
+}
+
+POST_SYSCALL(recvmmsg)(long res, long fd, sanitizer_kernel_mmsghdr *msg,
+ long vlen, long flags, void *timeout) {
+ if (res >= 0) {
+ if (msg) {
+ for (unsigned long i = 0; i < msg->msg_hdr.msg_iovlen; ++i) {
+ POST_WRITE(msg->msg_hdr.msg_iov[i].iov_base,
+ msg->msg_hdr.msg_iov[i].iov_len);
+ }
+ POST_WRITE(msg->msg_hdr.msg_control, msg->msg_hdr.msg_controllen);
+ POST_WRITE(&msg->msg_len, sizeof(msg->msg_len));
+ }
+ if (timeout) POST_WRITE(timeout, struct_timespec_sz);
+ }
+}
+
+PRE_SYSCALL(read)(long fd, void *buf, uptr count) {
+ if (buf) {
+ PRE_WRITE(buf, count);
+ }
+}
+
+POST_SYSCALL(read)(long res, long fd, void *buf, uptr count) {
+ if (res > 0 && buf) {
+ POST_WRITE(buf, res);
+ }
+}
+
+PRE_SYSCALL(time)(void *tloc) {}
+
+POST_SYSCALL(time)(long res, void *tloc) {
+ if (res >= 0) {
+ if (tloc) POST_WRITE(tloc, sizeof(long));
+ }
+}
+
+PRE_SYSCALL(stime)(void *tptr) {}
+
+POST_SYSCALL(stime)(long res, void *tptr) {
+ if (res >= 0) {
+ if (tptr) POST_WRITE(tptr, sizeof(long));
+ }
+}
+
+PRE_SYSCALL(gettimeofday)(void *tv, void *tz) {}
+
+POST_SYSCALL(gettimeofday)(long res, void *tv, void *tz) {
+ if (res >= 0) {
+ if (tv) POST_WRITE(tv, timeval_sz);
+ if (tz) POST_WRITE(tz, struct_timezone_sz);
+ }
+}
+
+PRE_SYSCALL(settimeofday)(void *tv, void *tz) {}
+
+POST_SYSCALL(settimeofday)(long res, void *tv, void *tz) {
+ if (res >= 0) {
+ if (tv) POST_WRITE(tv, timeval_sz);
+ if (tz) POST_WRITE(tz, struct_timezone_sz);
+ }
+}
+
+PRE_SYSCALL(adjtimex)(void *txc_p) {}
+
+POST_SYSCALL(adjtimex)(long res, void *txc_p) {
+ if (res >= 0) {
+ if (txc_p) POST_WRITE(txc_p, struct_timex_sz);
+ }
+}
+
+PRE_SYSCALL(times)(void *tbuf) {}
+
+POST_SYSCALL(times)(long res, void *tbuf) {
+ if (res >= 0) {
+ if (tbuf) POST_WRITE(tbuf, struct_tms_sz);
+ }
+}
+
+PRE_SYSCALL(gettid)() {}
+
+POST_SYSCALL(gettid)(long res) {}
+
+PRE_SYSCALL(nanosleep)(void *rqtp, void *rmtp) {}
+
+POST_SYSCALL(nanosleep)(long res, void *rqtp, void *rmtp) {
+ if (res >= 0) {
+ if (rqtp) POST_WRITE(rqtp, struct_timespec_sz);
+ if (rmtp) POST_WRITE(rmtp, struct_timespec_sz);
+ }
+}
+
+PRE_SYSCALL(alarm)(long seconds) {}
+
+POST_SYSCALL(alarm)(long res, long seconds) {}
+
+PRE_SYSCALL(getpid)() {}
+
+POST_SYSCALL(getpid)(long res) {}
+
+PRE_SYSCALL(getppid)() {}
+
+POST_SYSCALL(getppid)(long res) {}
+
+PRE_SYSCALL(getuid)() {}
+
+POST_SYSCALL(getuid)(long res) {}
+
+PRE_SYSCALL(geteuid)() {}
+
+POST_SYSCALL(geteuid)(long res) {}
+
+PRE_SYSCALL(getgid)() {}
+
+POST_SYSCALL(getgid)(long res) {}
+
+PRE_SYSCALL(getegid)() {}
+
+POST_SYSCALL(getegid)(long res) {}
+
+PRE_SYSCALL(getresuid)(void *ruid, void *euid, void *suid) {}
+
+POST_SYSCALL(getresuid)(long res, void *ruid, void *euid, void *suid) {
+ if (res >= 0) {
+ if (ruid) POST_WRITE(ruid, sizeof(unsigned));
+ if (euid) POST_WRITE(euid, sizeof(unsigned));
+ if (suid) POST_WRITE(suid, sizeof(unsigned));
+ }
+}
+
+PRE_SYSCALL(getresgid)(void *rgid, void *egid, void *sgid) {}
+
+POST_SYSCALL(getresgid)(long res, void *rgid, void *egid, void *sgid) {
+ if (res >= 0) {
+ if (rgid) POST_WRITE(rgid, sizeof(unsigned));
+ if (egid) POST_WRITE(egid, sizeof(unsigned));
+ if (sgid) POST_WRITE(sgid, sizeof(unsigned));
+ }
+}
+
+PRE_SYSCALL(getpgid)(long pid) {}
+
+POST_SYSCALL(getpgid)(long res, long pid) {}
+
+PRE_SYSCALL(getpgrp)() {}
+
+POST_SYSCALL(getpgrp)(long res) {}
+
+PRE_SYSCALL(getsid)(long pid) {}
+
+POST_SYSCALL(getsid)(long res, long pid) {}
+
+PRE_SYSCALL(getgroups)(long gidsetsize, void *grouplist) {}
+
+POST_SYSCALL(getgroups)(long res, long gidsetsize,
+ __sanitizer___kernel_gid_t *grouplist) {
+ if (res >= 0) {
+ if (grouplist) POST_WRITE(grouplist, res * sizeof(*grouplist));
+ }
+}
+
+PRE_SYSCALL(setregid)(long rgid, long egid) {}
+
+POST_SYSCALL(setregid)(long res, long rgid, long egid) {}
+
+PRE_SYSCALL(setgid)(long gid) {}
+
+POST_SYSCALL(setgid)(long res, long gid) {}
+
+PRE_SYSCALL(setreuid)(long ruid, long euid) {}
+
+POST_SYSCALL(setreuid)(long res, long ruid, long euid) {}
+
+PRE_SYSCALL(setuid)(long uid) {}
+
+POST_SYSCALL(setuid)(long res, long uid) {}
+
+PRE_SYSCALL(setresuid)(long ruid, long euid, long suid) {}
+
+POST_SYSCALL(setresuid)(long res, long ruid, long euid, long suid) {}
+
+PRE_SYSCALL(setresgid)(long rgid, long egid, long sgid) {}
+
+POST_SYSCALL(setresgid)(long res, long rgid, long egid, long sgid) {}
+
+PRE_SYSCALL(setfsuid)(long uid) {}
+
+POST_SYSCALL(setfsuid)(long res, long uid) {}
+
+PRE_SYSCALL(setfsgid)(long gid) {}
+
+POST_SYSCALL(setfsgid)(long res, long gid) {}
+
+PRE_SYSCALL(setpgid)(long pid, long pgid) {}
+
+POST_SYSCALL(setpgid)(long res, long pid, long pgid) {}
+
+PRE_SYSCALL(setsid)() {}
+
+POST_SYSCALL(setsid)(long res) {}
+
+PRE_SYSCALL(setgroups)(long gidsetsize, __sanitizer___kernel_gid_t *grouplist) {
+ if (grouplist) POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist));
+}
+
+POST_SYSCALL(setgroups)(long res, long gidsetsize,
+ __sanitizer___kernel_gid_t *grouplist) {}
+
+PRE_SYSCALL(acct)(const void *name) {
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(acct)(long res, const void *name) {}
+
+PRE_SYSCALL(capget)(void *header, void *dataptr) {}
+
+POST_SYSCALL(capget)(long res, void *header, void *dataptr) {
+ if (res >= 0) {
+ if (header) POST_WRITE(header, __user_cap_header_struct_sz);
+ if (dataptr) POST_WRITE(dataptr, __user_cap_data_struct_sz);
+ }
+}
+
+PRE_SYSCALL(capset)(void *header, const void *data) {
+ if (data) PRE_READ(data, __user_cap_data_struct_sz);
+}
+
+POST_SYSCALL(capset)(long res, void *header, const void *data) {
+ if (res >= 0) {
+ if (header) POST_WRITE(header, __user_cap_header_struct_sz);
+ }
+}
+
+PRE_SYSCALL(personality)(long personality) {}
+
+POST_SYSCALL(personality)(long res, long personality) {}
+
+PRE_SYSCALL(sigpending)(void *set) {}
+
+POST_SYSCALL(sigpending)(long res, void *set) {
+ if (res >= 0) {
+ if (set) POST_WRITE(set, old_sigset_t_sz);
+ }
+}
+
+PRE_SYSCALL(sigprocmask)(long how, void *set, void *oset) {}
+
+POST_SYSCALL(sigprocmask)(long res, long how, void *set, void *oset) {
+ if (res >= 0) {
+ if (set) POST_WRITE(set, old_sigset_t_sz);
+ if (oset) POST_WRITE(oset, old_sigset_t_sz);
+ }
}
-PRE_SYSCALL(rt_sigpending)(void *p, unsigned long s) { PRE_WRITE(p, s); }
+PRE_SYSCALL(getitimer)(long which, void *value) {}
-POST_SYSCALL(rt_sigpending)(long res, void *p, unsigned long s) {
- if (res == 0) {
- POST_WRITE(p, s);
+POST_SYSCALL(getitimer)(long res, long which, void *value) {
+ if (res >= 0) {
+ if (value) POST_WRITE(value, struct_itimerval_sz);
}
}
-PRE_SYSCALL(getdents)(int fd, void *dirp, int count) { PRE_WRITE(dirp, count); }
+PRE_SYSCALL(setitimer)(long which, void *value, void *ovalue) {}
-POST_SYSCALL(getdents)(long res, int fd, void *dirp, int count) {
- if (res > 0) {
- POST_WRITE(dirp, res);
+POST_SYSCALL(setitimer)(long res, long which, void *value, void *ovalue) {
+ if (res >= 0) {
+ if (value) POST_WRITE(value, struct_itimerval_sz);
+ if (ovalue) POST_WRITE(ovalue, struct_itimerval_sz);
}
}
-PRE_SYSCALL(getdents64)(int fd, void *dirp, int count) {
- PRE_WRITE(dirp, count);
+PRE_SYSCALL(timer_create)(long which_clock, void *timer_event_spec,
+ void *created_timer_id) {}
+
+POST_SYSCALL(timer_create)(long res, long which_clock, void *timer_event_spec,
+ void *created_timer_id) {
+ if (res >= 0) {
+ if (timer_event_spec) POST_WRITE(timer_event_spec, struct_sigevent_sz);
+ if (created_timer_id) POST_WRITE(created_timer_id, sizeof(long));
+ }
}
-POST_SYSCALL(getdents64)(long res, int fd, void *dirp, int count) {
- if (res > 0) {
- POST_WRITE(dirp, res);
+PRE_SYSCALL(timer_gettime)(long timer_id, void *setting) {}
+
+POST_SYSCALL(timer_gettime)(long res, long timer_id, void *setting) {
+ if (res >= 0) {
+ if (setting) POST_WRITE(setting, struct_itimerspec_sz);
}
}
-PRE_SYSCALL(wait4)(int pid, int *status, int options,
- struct sanitizer_kernel_rusage *r) {
- if (status) {
- PRE_WRITE(status, sizeof(*status));
+PRE_SYSCALL(timer_getoverrun)(long timer_id) {}
+
+POST_SYSCALL(timer_getoverrun)(long res, long timer_id) {}
+
+PRE_SYSCALL(timer_settime)(long timer_id, long flags, const void *new_setting,
+ void *old_setting) {
+ if (new_setting) PRE_READ(new_setting, struct_itimerspec_sz);
+}
+
+POST_SYSCALL(timer_settime)(long res, long timer_id, long flags,
+ const void *new_setting, void *old_setting) {
+ if (res >= 0) {
+ if (old_setting) POST_WRITE(old_setting, struct_itimerspec_sz);
}
- if (r) {
- PRE_WRITE(r, sizeof(*r));
+}
+
+PRE_SYSCALL(timer_delete)(long timer_id) {}
+
+POST_SYSCALL(timer_delete)(long res, long timer_id) {}
+
+PRE_SYSCALL(clock_settime)(long which_clock, const void *tp) {
+ if (tp) PRE_READ(tp, struct_timespec_sz);
+}
+
+POST_SYSCALL(clock_settime)(long res, long which_clock, const void *tp) {}
+
+PRE_SYSCALL(clock_gettime)(long which_clock, void *tp) {}
+
+POST_SYSCALL(clock_gettime)(long res, long which_clock, void *tp) {
+ if (res >= 0) {
+ if (tp) POST_WRITE(tp, struct_timespec_sz);
}
}
-POST_SYSCALL(wait4)(long res, int pid, int *status, int options,
- struct sanitizer_kernel_rusage *r) {
- if (res > 0) {
- if (status) {
- POST_WRITE(status, sizeof(*status));
+PRE_SYSCALL(clock_adjtime)(long which_clock, void *tx) {}
+
+POST_SYSCALL(clock_adjtime)(long res, long which_clock, void *tx) {
+ if (res >= 0) {
+ if (tx) POST_WRITE(tx, struct_timex_sz);
+ }
+}
+
+PRE_SYSCALL(clock_getres)(long which_clock, void *tp) {}
+
+POST_SYSCALL(clock_getres)(long res, long which_clock, void *tp) {
+ if (res >= 0) {
+ if (tp) POST_WRITE(tp, struct_timespec_sz);
+ }
+}
+
+PRE_SYSCALL(clock_nanosleep)(long which_clock, long flags, const void *rqtp,
+ void *rmtp) {
+ if (rqtp) PRE_READ(rqtp, struct_timespec_sz);
+}
+
+POST_SYSCALL(clock_nanosleep)(long res, long which_clock, long flags,
+ const void *rqtp, void *rmtp) {
+ if (res >= 0) {
+ if (rmtp) POST_WRITE(rmtp, struct_timespec_sz);
+ }
+}
+
+PRE_SYSCALL(nice)(long increment) {}
+
+POST_SYSCALL(nice)(long res, long increment) {}
+
+PRE_SYSCALL(sched_setscheduler)(long pid, long policy, void *param) {}
+
+POST_SYSCALL(sched_setscheduler)(long res, long pid, long policy, void *param) {
+ if (res >= 0) {
+ if (param) POST_WRITE(param, struct_sched_param_sz);
+ }
+}
+
+PRE_SYSCALL(sched_setparam)(long pid, void *param) {
+ if (param) PRE_READ(param, struct_sched_param_sz);
+}
+
+POST_SYSCALL(sched_setparam)(long res, long pid, void *param) {}
+
+PRE_SYSCALL(sched_getscheduler)(long pid) {}
+
+POST_SYSCALL(sched_getscheduler)(long res, long pid) {}
+
+PRE_SYSCALL(sched_getparam)(long pid, void *param) {}
+
+POST_SYSCALL(sched_getparam)(long res, long pid, void *param) {
+ if (res >= 0) {
+ if (param) POST_WRITE(param, struct_sched_param_sz);
+ }
+}
+
+PRE_SYSCALL(sched_setaffinity)(long pid, long len, void *user_mask_ptr) {
+ if (user_mask_ptr) PRE_READ(user_mask_ptr, len);
+}
+
+POST_SYSCALL(sched_setaffinity)(long res, long pid, long len,
+ void *user_mask_ptr) {}
+
+PRE_SYSCALL(sched_getaffinity)(long pid, long len, void *user_mask_ptr) {}
+
+POST_SYSCALL(sched_getaffinity)(long res, long pid, long len,
+ void *user_mask_ptr) {
+ if (res >= 0) {
+ if (user_mask_ptr) POST_WRITE(user_mask_ptr, len);
+ }
+}
+
+PRE_SYSCALL(sched_yield)() {}
+
+POST_SYSCALL(sched_yield)(long res) {}
+
+PRE_SYSCALL(sched_get_priority_max)(long policy) {}
+
+POST_SYSCALL(sched_get_priority_max)(long res, long policy) {}
+
+PRE_SYSCALL(sched_get_priority_min)(long policy) {}
+
+POST_SYSCALL(sched_get_priority_min)(long res, long policy) {}
+
+PRE_SYSCALL(sched_rr_get_interval)(long pid, void *interval) {}
+
+POST_SYSCALL(sched_rr_get_interval)(long res, long pid, void *interval) {
+ if (res >= 0) {
+ if (interval) POST_WRITE(interval, struct_timespec_sz);
+ }
+}
+
+PRE_SYSCALL(setpriority)(long which, long who, long niceval) {}
+
+POST_SYSCALL(setpriority)(long res, long which, long who, long niceval) {}
+
+PRE_SYSCALL(getpriority)(long which, long who) {}
+
+POST_SYSCALL(getpriority)(long res, long which, long who) {}
+
+PRE_SYSCALL(shutdown)(long arg0, long arg1) {}
+
+POST_SYSCALL(shutdown)(long res, long arg0, long arg1) {}
+
+PRE_SYSCALL(reboot)(long magic1, long magic2, long cmd, void *arg) {}
+
+POST_SYSCALL(reboot)(long res, long magic1, long magic2, long cmd, void *arg) {}
+
+PRE_SYSCALL(restart_syscall)() {}
+
+POST_SYSCALL(restart_syscall)(long res) {}
+
+PRE_SYSCALL(kexec_load)(long entry, long nr_segments, void *segments,
+ long flags) {}
+
+POST_SYSCALL(kexec_load)(long res, long entry, long nr_segments, void *segments,
+ long flags) {
+ if (res >= 0) {
+ if (segments) POST_WRITE(segments, struct_kexec_segment_sz);
+ }
+}
+
+PRE_SYSCALL(exit)(long error_code) {}
+
+POST_SYSCALL(exit)(long res, long error_code) {}
+
+PRE_SYSCALL(exit_group)(long error_code) {}
+
+POST_SYSCALL(exit_group)(long res, long error_code) {}
+
+PRE_SYSCALL(wait4)(long pid, void *stat_addr, long options, void *ru) {}
+
+POST_SYSCALL(wait4)(long res, long pid, void *stat_addr, long options,
+ void *ru) {
+ if (res >= 0) {
+ if (stat_addr) POST_WRITE(stat_addr, sizeof(int));
+ if (ru) POST_WRITE(ru, struct_rusage_sz);
+ }
+}
+
+PRE_SYSCALL(waitid)(long which, long pid, void *infop, long options, void *ru) {
+}
+
+POST_SYSCALL(waitid)(long res, long which, long pid, void *infop, long options,
+ void *ru) {
+ if (res >= 0) {
+ if (infop) POST_WRITE(infop, siginfo_t_sz);
+ if (ru) POST_WRITE(ru, struct_rusage_sz);
+ }
+}
+
+PRE_SYSCALL(waitpid)(long pid, void *stat_addr, long options) {}
+
+POST_SYSCALL(waitpid)(long res, long pid, void *stat_addr, long options) {
+ if (res >= 0) {
+ if (stat_addr) POST_WRITE(stat_addr, sizeof(int));
+ }
+}
+
+PRE_SYSCALL(set_tid_address)(void *tidptr) {}
+
+POST_SYSCALL(set_tid_address)(long res, void *tidptr) {
+ if (res >= 0) {
+ if (tidptr) POST_WRITE(tidptr, sizeof(int));
+ }
+}
+
+PRE_SYSCALL(init_module)(void *umod, long len, const void *uargs) {
+ if (uargs)
+ PRE_READ(uargs, __sanitizer::internal_strlen((const char *)uargs) + 1);
+}
+
+POST_SYSCALL(init_module)(long res, void *umod, long len, const void *uargs) {}
+
+PRE_SYSCALL(delete_module)(const void *name_user, long flags) {
+ if (name_user)
+ PRE_READ(name_user,
+ __sanitizer::internal_strlen((const char *)name_user) + 1);
+}
+
+POST_SYSCALL(delete_module)(long res, const void *name_user, long flags) {}
+
+PRE_SYSCALL(rt_sigprocmask)(long how, void *set, void *oset, long sigsetsize) {}
+
+POST_SYSCALL(rt_sigprocmask)(long res, long how, kernel_sigset_t *set,
+ kernel_sigset_t *oset, long sigsetsize) {
+ if (res >= 0) {
+ if (set) POST_WRITE(set, sigsetsize);
+ if (oset) POST_WRITE(oset, sigsetsize);
+ }
+}
+
+PRE_SYSCALL(rt_sigpending)(void *set, long sigsetsize) {}
+
+POST_SYSCALL(rt_sigpending)(long res, kernel_sigset_t *set, long sigsetsize) {
+ if (res >= 0) {
+ if (set) POST_WRITE(set, sigsetsize);
+ }
+}
+
+PRE_SYSCALL(rt_sigtimedwait)(const kernel_sigset_t *uthese, void *uinfo,
+ const void *uts, long sigsetsize) {
+ if (uthese) PRE_READ(uthese, sigsetsize);
+ if (uts) PRE_READ(uts, struct_timespec_sz);
+}
+
+POST_SYSCALL(rt_sigtimedwait)(long res, const void *uthese, void *uinfo,
+ const void *uts, long sigsetsize) {
+ if (res >= 0) {
+ if (uinfo) POST_WRITE(uinfo, siginfo_t_sz);
+ }
+}
+
+PRE_SYSCALL(rt_tgsigqueueinfo)(long tgid, long pid, long sig, void *uinfo) {}
+
+POST_SYSCALL(rt_tgsigqueueinfo)(long res, long tgid, long pid, long sig,
+ void *uinfo) {
+ if (res >= 0) {
+ if (uinfo) POST_WRITE(uinfo, siginfo_t_sz);
+ }
+}
+
+PRE_SYSCALL(kill)(long pid, long sig) {}
+
+POST_SYSCALL(kill)(long res, long pid, long sig) {}
+
+PRE_SYSCALL(tgkill)(long tgid, long pid, long sig) {}
+
+POST_SYSCALL(tgkill)(long res, long tgid, long pid, long sig) {}
+
+PRE_SYSCALL(tkill)(long pid, long sig) {}
+
+POST_SYSCALL(tkill)(long res, long pid, long sig) {}
+
+PRE_SYSCALL(rt_sigqueueinfo)(long pid, long sig, void *uinfo) {}
+
+POST_SYSCALL(rt_sigqueueinfo)(long res, long pid, long sig, void *uinfo) {
+ if (res >= 0) {
+ if (uinfo) POST_WRITE(uinfo, siginfo_t_sz);
+ }
+}
+
+PRE_SYSCALL(sgetmask)() {}
+
+POST_SYSCALL(sgetmask)(long res) {}
+
+PRE_SYSCALL(ssetmask)(long newmask) {}
+
+POST_SYSCALL(ssetmask)(long res, long newmask) {}
+
+PRE_SYSCALL(signal)(long sig, long handler) {}
+
+POST_SYSCALL(signal)(long res, long sig, long handler) {}
+
+PRE_SYSCALL(pause)() {}
+
+POST_SYSCALL(pause)(long res) {}
+
+PRE_SYSCALL(sync)() {}
+
+POST_SYSCALL(sync)(long res) {}
+
+PRE_SYSCALL(fsync)(long fd) {}
+
+POST_SYSCALL(fsync)(long res, long fd) {}
+
+PRE_SYSCALL(fdatasync)(long fd) {}
+
+POST_SYSCALL(fdatasync)(long res, long fd) {}
+
+PRE_SYSCALL(bdflush)(long func, long data) {}
+
+POST_SYSCALL(bdflush)(long res, long func, long data) {}
+
+PRE_SYSCALL(mount)(void *dev_name, void *dir_name, void *type, long flags,
+ void *data) {}
+
+POST_SYSCALL(mount)(long res, void *dev_name, void *dir_name, void *type,
+ long flags, void *data) {
+ if (res >= 0) {
+ if (dev_name)
+ POST_WRITE(dev_name,
+ __sanitizer::internal_strlen((const char *)dev_name) + 1);
+ if (dir_name)
+ POST_WRITE(dir_name,
+ __sanitizer::internal_strlen((const char *)dir_name) + 1);
+ if (type)
+ POST_WRITE(type, __sanitizer::internal_strlen((const char *)type) + 1);
+ }
+}
+
+PRE_SYSCALL(umount)(void *name, long flags) {}
+
+POST_SYSCALL(umount)(long res, void *name, long flags) {
+ if (res >= 0) {
+ if (name)
+ POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
+ }
+}
+
+PRE_SYSCALL(oldumount)(void *name) {}
+
+POST_SYSCALL(oldumount)(long res, void *name) {
+ if (res >= 0) {
+ if (name)
+ POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
+ }
+}
+
+PRE_SYSCALL(truncate)(const void *path, long length) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+}
+
+POST_SYSCALL(truncate)(long res, const void *path, long length) {}
+
+PRE_SYSCALL(ftruncate)(long fd, long length) {}
+
+POST_SYSCALL(ftruncate)(long res, long fd, long length) {}
+
+PRE_SYSCALL(stat)(const void *filename, void *statbuf) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(stat)(long res, const void *filename, void *statbuf) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz);
+ }
+}
+
+PRE_SYSCALL(statfs)(const void *path, void *buf) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+}
+
+POST_SYSCALL(statfs)(long res, const void *path, void *buf) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, struct_statfs_sz);
+ }
+}
+
+PRE_SYSCALL(statfs64)(const void *path, long sz, void *buf) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+}
+
+POST_SYSCALL(statfs64)(long res, const void *path, long sz, void *buf) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, struct_statfs64_sz);
+ }
+}
+
+PRE_SYSCALL(fstatfs)(long fd, void *buf) {}
+
+POST_SYSCALL(fstatfs)(long res, long fd, void *buf) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, struct_statfs_sz);
+ }
+}
+
+PRE_SYSCALL(fstatfs64)(long fd, long sz, void *buf) {}
+
+POST_SYSCALL(fstatfs64)(long res, long fd, long sz, void *buf) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, struct_statfs64_sz);
+ }
+}
+
+PRE_SYSCALL(lstat)(const void *filename, void *statbuf) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(lstat)(long res, const void *filename, void *statbuf) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz);
+ }
+}
+
+PRE_SYSCALL(fstat)(long fd, void *statbuf) {}
+
+POST_SYSCALL(fstat)(long res, long fd, void *statbuf) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz);
+ }
+}
+
+PRE_SYSCALL(newstat)(const void *filename, void *statbuf) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(newstat)(long res, const void *filename, void *statbuf) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
+ }
+}
+
+PRE_SYSCALL(newlstat)(const void *filename, void *statbuf) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(newlstat)(long res, const void *filename, void *statbuf) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
+ }
+}
+
+PRE_SYSCALL(newfstat)(long fd, void *statbuf) {}
+
+POST_SYSCALL(newfstat)(long res, long fd, void *statbuf) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
+ }
+}
+
+PRE_SYSCALL(ustat)(long dev, void *ubuf) {}
+
+POST_SYSCALL(ustat)(long res, long dev, void *ubuf) {
+ if (res >= 0) {
+ if (ubuf) POST_WRITE(ubuf, struct_ustat_sz);
+ }
+}
+
+PRE_SYSCALL(stat64)(const void *filename, void *statbuf) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(stat64)(long res, const void *filename, void *statbuf) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
+ }
+}
+
+PRE_SYSCALL(fstat64)(long fd, void *statbuf) {}
+
+POST_SYSCALL(fstat64)(long res, long fd, void *statbuf) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
+ }
+}
+
+PRE_SYSCALL(lstat64)(const void *filename, void *statbuf) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(lstat64)(long res, const void *filename, void *statbuf) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
+ }
+}
+
+PRE_SYSCALL(setxattr)(const void *path, const void *name, const void *value,
+ long size, long flags) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+ if (value) PRE_READ(value, size);
+}
+
+POST_SYSCALL(setxattr)(long res, const void *path, const void *name,
+ const void *value, long size, long flags) {}
+
+PRE_SYSCALL(lsetxattr)(const void *path, const void *name, const void *value,
+ long size, long flags) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+ if (value) PRE_READ(value, size);
+}
+
+POST_SYSCALL(lsetxattr)(long res, const void *path, const void *name,
+ const void *value, long size, long flags) {}
+
+PRE_SYSCALL(fsetxattr)(long fd, const void *name, const void *value, long size,
+ long flags) {
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+ if (value) PRE_READ(value, size);
+}
+
+POST_SYSCALL(fsetxattr)(long res, long fd, const void *name, const void *value,
+ long size, long flags) {}
+
+PRE_SYSCALL(getxattr)(const void *path, const void *name, void *value,
+ long size) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(getxattr)(long res, const void *path, const void *name,
+ void *value, long size) {
+ if (res >= 0) {
+ if (value) POST_WRITE(value, size);
+ }
+}
+
+PRE_SYSCALL(lgetxattr)(const void *path, const void *name, void *value,
+ long size) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(lgetxattr)(long res, const void *path, const void *name,
+ void *value, long size) {
+ if (res >= 0) {
+ if (value) POST_WRITE(value, size);
+ }
+}
+
+PRE_SYSCALL(fgetxattr)(long fd, const void *name, void *value, long size) {
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(fgetxattr)(long res, long fd, const void *name, void *value,
+ long size) {
+ if (res >= 0) {
+ if (value) POST_WRITE(value, size);
+ }
+}
+
+PRE_SYSCALL(listxattr)(const void *path, void *list, long size) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+}
+
+POST_SYSCALL(listxattr)(long res, const void *path, void *list, long size) {
+ if (res >= 0) {
+ if (list) POST_WRITE(list, size);
+ }
+}
+
+PRE_SYSCALL(llistxattr)(const void *path, void *list, long size) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+}
+
+POST_SYSCALL(llistxattr)(long res, const void *path, void *list, long size) {
+ if (res >= 0) {
+ if (list) POST_WRITE(list, size);
+ }
+}
+
+PRE_SYSCALL(flistxattr)(long fd, void *list, long size) {}
+
+POST_SYSCALL(flistxattr)(long res, long fd, void *list, long size) {
+ if (res >= 0) {
+ if (list) POST_WRITE(list, size);
+ }
+}
+
+PRE_SYSCALL(removexattr)(const void *path, const void *name) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(removexattr)(long res, const void *path, const void *name) {}
+
+PRE_SYSCALL(lremovexattr)(const void *path, const void *name) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(lremovexattr)(long res, const void *path, const void *name) {}
+
+PRE_SYSCALL(fremovexattr)(long fd, const void *name) {
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(fremovexattr)(long res, long fd, const void *name) {}
+
+PRE_SYSCALL(brk)(long brk) {}
+
+POST_SYSCALL(brk)(long res, long brk) {}
+
+PRE_SYSCALL(mprotect)(long start, long len, long prot) {}
+
+POST_SYSCALL(mprotect)(long res, long start, long len, long prot) {}
+
+PRE_SYSCALL(mremap)(long addr, long old_len, long new_len, long flags,
+ long new_addr) {}
+
+POST_SYSCALL(mremap)(long res, long addr, long old_len, long new_len,
+ long flags, long new_addr) {}
+
+PRE_SYSCALL(remap_file_pages)(long start, long size, long prot, long pgoff,
+ long flags) {}
+
+POST_SYSCALL(remap_file_pages)(long res, long start, long size, long prot,
+ long pgoff, long flags) {}
+
+PRE_SYSCALL(msync)(long start, long len, long flags) {}
+
+POST_SYSCALL(msync)(long res, long start, long len, long flags) {}
+
+PRE_SYSCALL(munmap)(long addr, long len) {}
+
+POST_SYSCALL(munmap)(long res, long addr, long len) {}
+
+PRE_SYSCALL(mlock)(long start, long len) {}
+
+POST_SYSCALL(mlock)(long res, long start, long len) {}
+
+PRE_SYSCALL(munlock)(long start, long len) {}
+
+POST_SYSCALL(munlock)(long res, long start, long len) {}
+
+PRE_SYSCALL(mlockall)(long flags) {}
+
+POST_SYSCALL(mlockall)(long res, long flags) {}
+
+PRE_SYSCALL(munlockall)() {}
+
+POST_SYSCALL(munlockall)(long res) {}
+
+PRE_SYSCALL(madvise)(long start, long len, long behavior) {}
+
+POST_SYSCALL(madvise)(long res, long start, long len, long behavior) {}
+
+PRE_SYSCALL(mincore)(long start, long len, void *vec) {}
+
+POST_SYSCALL(mincore)(long res, long start, long len, void *vec) {
+ if (res >= 0) {
+ if (vec) {
+ POST_WRITE(vec, (len + GetPageSizeCached() - 1) / GetPageSizeCached());
}
- if (r) {
- POST_WRITE(r, sizeof(*r));
+ }
+}
+
+PRE_SYSCALL(pivot_root)(const void *new_root, const void *put_old) {
+ if (new_root)
+ PRE_READ(new_root,
+ __sanitizer::internal_strlen((const char *)new_root) + 1);
+ if (put_old)
+ PRE_READ(put_old, __sanitizer::internal_strlen((const char *)put_old) + 1);
+}
+
+POST_SYSCALL(pivot_root)(long res, const void *new_root, const void *put_old) {}
+
+PRE_SYSCALL(chroot)(const void *filename) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(chroot)(long res, const void *filename) {}
+
+PRE_SYSCALL(mknod)(const void *filename, long mode, long dev) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(mknod)(long res, const void *filename, long mode, long dev) {}
+
+PRE_SYSCALL(link)(const void *oldname, const void *newname) {
+ if (oldname)
+ PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
+ if (newname)
+ PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
+}
+
+POST_SYSCALL(link)(long res, const void *oldname, const void *newname) {}
+
+PRE_SYSCALL(symlink)(const void *old, const void *new_) {
+ if (old) PRE_READ(old, __sanitizer::internal_strlen((const char *)old) + 1);
+ if (new_)
+ PRE_READ(new_, __sanitizer::internal_strlen((const char *)new_) + 1);
+}
+
+POST_SYSCALL(symlink)(long res, const void *old, const void *new_) {}
+
+PRE_SYSCALL(unlink)(const void *pathname) {
+ if (pathname)
+ PRE_READ(pathname,
+ __sanitizer::internal_strlen((const char *)pathname) + 1);
+}
+
+POST_SYSCALL(unlink)(long res, const void *pathname) {}
+
+PRE_SYSCALL(rename)(const void *oldname, const void *newname) {
+ if (oldname)
+ PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
+ if (newname)
+ PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
+}
+
+POST_SYSCALL(rename)(long res, const void *oldname, const void *newname) {}
+
+PRE_SYSCALL(chmod)(const void *filename, long mode) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(chmod)(long res, const void *filename, long mode) {}
+
+PRE_SYSCALL(fchmod)(long fd, long mode) {}
+
+POST_SYSCALL(fchmod)(long res, long fd, long mode) {}
+
+PRE_SYSCALL(fcntl)(long fd, long cmd, long arg) {}
+
+POST_SYSCALL(fcntl)(long res, long fd, long cmd, long arg) {}
+
+PRE_SYSCALL(fcntl64)(long fd, long cmd, long arg) {}
+
+POST_SYSCALL(fcntl64)(long res, long fd, long cmd, long arg) {}
+
+PRE_SYSCALL(pipe)(void *fildes) {}
+
+POST_SYSCALL(pipe)(long res, void *fildes) {
+ if (res >= 0) {
+ if (fildes) POST_WRITE(fildes, sizeof(int));
+ }
+}
+
+PRE_SYSCALL(pipe2)(void *fildes, long flags) {}
+
+POST_SYSCALL(pipe2)(long res, void *fildes, long flags) {
+ if (res >= 0) {
+ if (fildes) POST_WRITE(fildes, sizeof(int));
+ }
+}
+
+PRE_SYSCALL(dup)(long fildes) {}
+
+POST_SYSCALL(dup)(long res, long fildes) {}
+
+PRE_SYSCALL(dup2)(long oldfd, long newfd) {}
+
+POST_SYSCALL(dup2)(long res, long oldfd, long newfd) {}
+
+PRE_SYSCALL(dup3)(long oldfd, long newfd, long flags) {}
+
+POST_SYSCALL(dup3)(long res, long oldfd, long newfd, long flags) {}
+
+PRE_SYSCALL(ioperm)(long from, long num, long on) {}
+
+POST_SYSCALL(ioperm)(long res, long from, long num, long on) {}
+
+PRE_SYSCALL(ioctl)(long fd, long cmd, long arg) {}
+
+POST_SYSCALL(ioctl)(long res, long fd, long cmd, long arg) {}
+
+PRE_SYSCALL(flock)(long fd, long cmd) {}
+
+POST_SYSCALL(flock)(long res, long fd, long cmd) {}
+
+PRE_SYSCALL(io_setup)(long nr_reqs, void *ctx) {}
+
+POST_SYSCALL(io_setup)(long res, long nr_reqs, void *ctx) {
+ if (res >= 0) {
+ if (ctx) POST_WRITE(ctx, sizeof(long));
+ }
+}
+
+PRE_SYSCALL(io_destroy)(long ctx) {}
+
+POST_SYSCALL(io_destroy)(long res, long ctx) {}
+
+PRE_SYSCALL(io_getevents)(long ctx_id, long min_nr, long nr, void *events,
+ void *timeout) {
+ if (timeout) PRE_READ(timeout, struct_timespec_sz);
+}
+
+POST_SYSCALL(io_getevents)(long res, long ctx_id, long min_nr, long nr,
+ void *events, void *timeout) {
+ if (res >= 0) {
+ if (events) POST_WRITE(events, res * struct_io_event_sz);
+ if (timeout) POST_WRITE(timeout, struct_timespec_sz);
+ }
+}
+
+PRE_SYSCALL(io_submit)(long ctx_id, long nr, __sanitizer_iocb **iocbpp) {
+ for (long i = 0; i < nr; ++i) {
+ if (iocbpp[i]->aio_lio_opcode == iocb_cmd_pwrite && iocbpp[i]->aio_buf &&
+ iocbpp[i]->aio_nbytes)
+ PRE_READ((void *)iocbpp[i]->aio_buf, iocbpp[i]->aio_nbytes);
+ }
+}
+
+POST_SYSCALL(io_submit)(long res, long ctx_id, long nr,
+ __sanitizer_iocb **iocbpp) {
+ if (res > 0 && iocbpp) {
+ for (long i = 0; i < res; ++i) {
+ if (iocbpp[i]->aio_lio_opcode == iocb_cmd_pread && iocbpp[i]->aio_buf &&
+ iocbpp[i]->aio_nbytes)
+ POST_WRITE((void *)iocbpp[i]->aio_buf, iocbpp[i]->aio_nbytes);
}
}
}
-PRE_SYSCALL(waitpid)(int pid, int *status, int options) {
- if (status) {
- PRE_WRITE(status, sizeof(*status));
+PRE_SYSCALL(io_cancel)(long ctx_id, void *iocb, void *result) {}
+
+POST_SYSCALL(io_cancel)(long res, long ctx_id, void *iocb, void *result) {
+ if (res >= 0) {
+ if (iocb) POST_WRITE(iocb, sizeof(__sanitizer_iocb));
+ if (result) POST_WRITE(result, struct_io_event_sz);
}
}
-POST_SYSCALL(waitpid)(long res, int pid, int *status, int options) {
- if (res > 0 && status) {
- POST_WRITE(status, sizeof(*status));
+PRE_SYSCALL(sendfile)(long out_fd, long in_fd, void *offset, long count) {}
+
+POST_SYSCALL(sendfile)(long res, long out_fd, long in_fd,
+ __sanitizer___kernel_off_t *offset, long count) {
+ if (res >= 0) {
+ if (offset) POST_WRITE(offset, sizeof(*offset));
}
}
+
+PRE_SYSCALL(sendfile64)(long out_fd, long in_fd, void *offset, long count) {}
+
+POST_SYSCALL(sendfile64)(long res, long out_fd, long in_fd,
+ __sanitizer___kernel_loff_t *offset, long count) {
+ if (res >= 0) {
+ if (offset) POST_WRITE(offset, sizeof(*offset));
+ }
+}
+
+PRE_SYSCALL(readlink)(const void *path, void *buf, long bufsiz) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+}
+
+POST_SYSCALL(readlink)(long res, const void *path, void *buf, long bufsiz) {
+ if (res >= 0) {
+ if (buf)
+ POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
+ }
+}
+
+PRE_SYSCALL(creat)(const void *pathname, long mode) {
+ if (pathname)
+ PRE_READ(pathname,
+ __sanitizer::internal_strlen((const char *)pathname) + 1);
+}
+
+POST_SYSCALL(creat)(long res, const void *pathname, long mode) {}
+
+PRE_SYSCALL(open)(const void *filename, long flags, long mode) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(open)(long res, const void *filename, long flags, long mode) {}
+
+PRE_SYSCALL(close)(long fd) {
+ COMMON_SYSCALL_FD_CLOSE((int)fd);
+}
+
+POST_SYSCALL(close)(long res, long fd) {}
+
+PRE_SYSCALL(access)(const void *filename, long mode) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(access)(long res, const void *filename, long mode) {}
+
+PRE_SYSCALL(vhangup)() {}
+
+POST_SYSCALL(vhangup)(long res) {}
+
+PRE_SYSCALL(chown)(const void *filename, long user, long group) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(chown)(long res, const void *filename, long user, long group) {}
+
+PRE_SYSCALL(lchown)(const void *filename, long user, long group) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(lchown)(long res, const void *filename, long user, long group) {}
+
+PRE_SYSCALL(fchown)(long fd, long user, long group) {}
+
+POST_SYSCALL(fchown)(long res, long fd, long user, long group) {}
+
+PRE_SYSCALL(chown16)(const void *filename, long user, long group) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(chown16)(long res, const void *filename, long user, long group) {}
+
+PRE_SYSCALL(lchown16)(const void *filename, long user, long group) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(lchown16)(long res, const void *filename, long user, long group) {}
+
+PRE_SYSCALL(fchown16)(long fd, long user, long group) {}
+
+POST_SYSCALL(fchown16)(long res, long fd, long user, long group) {}
+
+PRE_SYSCALL(setregid16)(long rgid, long egid) {}
+
+POST_SYSCALL(setregid16)(long res, long rgid, long egid) {}
+
+PRE_SYSCALL(setgid16)(long gid) {}
+
+POST_SYSCALL(setgid16)(long res, long gid) {}
+
+PRE_SYSCALL(setreuid16)(long ruid, long euid) {}
+
+POST_SYSCALL(setreuid16)(long res, long ruid, long euid) {}
+
+PRE_SYSCALL(setuid16)(long uid) {}
+
+POST_SYSCALL(setuid16)(long res, long uid) {}
+
+PRE_SYSCALL(setresuid16)(long ruid, long euid, long suid) {}
+
+POST_SYSCALL(setresuid16)(long res, long ruid, long euid, long suid) {}
+
+PRE_SYSCALL(getresuid16)(void *ruid, void *euid, void *suid) {}
+
+POST_SYSCALL(getresuid16)(long res, __sanitizer___kernel_old_uid_t *ruid,
+ __sanitizer___kernel_old_uid_t *euid,
+ __sanitizer___kernel_old_uid_t *suid) {
+ if (res >= 0) {
+ if (ruid) POST_WRITE(ruid, sizeof(*ruid));
+ if (euid) POST_WRITE(euid, sizeof(*euid));
+ if (suid) POST_WRITE(suid, sizeof(*suid));
+ }
+}
+
+PRE_SYSCALL(setresgid16)(long rgid, long egid, long sgid) {}
+
+POST_SYSCALL(setresgid16)(long res, long rgid, long egid, long sgid) {}
+
+PRE_SYSCALL(getresgid16)(void *rgid, void *egid, void *sgid) {}
+
+POST_SYSCALL(getresgid16)(long res, __sanitizer___kernel_old_gid_t *rgid,
+ __sanitizer___kernel_old_gid_t *egid,
+ __sanitizer___kernel_old_gid_t *sgid) {
+ if (res >= 0) {
+ if (rgid) POST_WRITE(rgid, sizeof(*rgid));
+ if (egid) POST_WRITE(egid, sizeof(*egid));
+ if (sgid) POST_WRITE(sgid, sizeof(*sgid));
+ }
+}
+
+PRE_SYSCALL(setfsuid16)(long uid) {}
+
+POST_SYSCALL(setfsuid16)(long res, long uid) {}
+
+PRE_SYSCALL(setfsgid16)(long gid) {}
+
+POST_SYSCALL(setfsgid16)(long res, long gid) {}
+
+PRE_SYSCALL(getgroups16)(long gidsetsize,
+ __sanitizer___kernel_old_gid_t *grouplist) {}
+
+POST_SYSCALL(getgroups16)(long res, long gidsetsize,
+ __sanitizer___kernel_old_gid_t *grouplist) {
+ if (res >= 0) {
+ if (grouplist) POST_WRITE(grouplist, res * sizeof(*grouplist));
+ }
+}
+
+PRE_SYSCALL(setgroups16)(long gidsetsize,
+ __sanitizer___kernel_old_gid_t *grouplist) {
+ if (grouplist) POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist));
+}
+
+POST_SYSCALL(setgroups16)(long res, long gidsetsize,
+ __sanitizer___kernel_old_gid_t *grouplist) {}
+
+PRE_SYSCALL(getuid16)() {}
+
+POST_SYSCALL(getuid16)(long res) {}
+
+PRE_SYSCALL(geteuid16)() {}
+
+POST_SYSCALL(geteuid16)(long res) {}
+
+PRE_SYSCALL(getgid16)() {}
+
+POST_SYSCALL(getgid16)(long res) {}
+
+PRE_SYSCALL(getegid16)() {}
+
+POST_SYSCALL(getegid16)(long res) {}
+
+PRE_SYSCALL(utime)(void *filename, void *times) {}
+
+POST_SYSCALL(utime)(long res, void *filename, void *times) {
+ if (res >= 0) {
+ if (filename)
+ POST_WRITE(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+ if (times) POST_WRITE(times, struct_utimbuf_sz);
+ }
+}
+
+PRE_SYSCALL(utimes)(void *filename, void *utimes) {}
+
+POST_SYSCALL(utimes)(long res, void *filename, void *utimes) {
+ if (res >= 0) {
+ if (filename)
+ POST_WRITE(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+ if (utimes) POST_WRITE(utimes, timeval_sz);
+ }
+}
+
+PRE_SYSCALL(lseek)(long fd, long offset, long origin) {}
+
+POST_SYSCALL(lseek)(long res, long fd, long offset, long origin) {}
+
+PRE_SYSCALL(llseek)(long fd, long offset_high, long offset_low, void *result,
+ long origin) {}
+
+POST_SYSCALL(llseek)(long res, long fd, long offset_high, long offset_low,
+ void *result, long origin) {
+ if (res >= 0) {
+ if (result) POST_WRITE(result, sizeof(long long));
+ }
+}
+
+PRE_SYSCALL(readv)(long fd, const __sanitizer_iovec *vec, long vlen) {}
+
+POST_SYSCALL(readv)(long res, long fd, const __sanitizer_iovec *vec,
+ long vlen) {
+ if (res >= 0) {
+ if (vec) kernel_write_iovec(vec, vlen, res);
+ }
+}
+
+PRE_SYSCALL(write)(long fd, const void *buf, long count) {
+ if (buf) PRE_READ(buf, count);
+}
+
+POST_SYSCALL(write)(long res, long fd, const void *buf, long count) {}
+
+PRE_SYSCALL(writev)(long fd, const __sanitizer_iovec *vec, long vlen) {}
+
+POST_SYSCALL(writev)(long res, long fd, const __sanitizer_iovec *vec,
+ long vlen) {
+ if (res >= 0) {
+ if (vec) kernel_read_iovec(vec, vlen, res);
+ }
+}
+
+#ifdef _LP64
+PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos) {}
+
+POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, res);
+ }
+}
+
+PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos) {
+ if (buf) PRE_READ(buf, count);
+}
+
+POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count,
+ long pos) {}
+#else
+PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos0, long pos1) {}
+
+POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos0,
+ long pos1) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, res);
+ }
+}
+
+PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos0,
+ long pos1) {
+ if (buf) PRE_READ(buf, count);
+}
+
+POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count,
+ long pos0, long pos1) {}
+#endif
+
+PRE_SYSCALL(preadv)(long fd, const __sanitizer_iovec *vec, long vlen,
+ long pos_l, long pos_h) {}
+
+POST_SYSCALL(preadv)(long res, long fd, const __sanitizer_iovec *vec, long vlen,
+ long pos_l, long pos_h) {
+ if (res >= 0) {
+ if (vec) kernel_write_iovec(vec, vlen, res);
+ }
+}
+
+PRE_SYSCALL(pwritev)(long fd, const __sanitizer_iovec *vec, long vlen,
+ long pos_l, long pos_h) {}
+
+POST_SYSCALL(pwritev)(long res, long fd, const __sanitizer_iovec *vec,
+ long vlen, long pos_l, long pos_h) {
+ if (res >= 0) {
+ if (vec) kernel_read_iovec(vec, vlen, res);
+ }
+}
+
+PRE_SYSCALL(getcwd)(void *buf, long size) {}
+
+POST_SYSCALL(getcwd)(long res, void *buf, long size) {
+ if (res >= 0) {
+ if (buf)
+ POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
+ }
+}
+
+PRE_SYSCALL(mkdir)(const void *pathname, long mode) {
+ if (pathname)
+ PRE_READ(pathname,
+ __sanitizer::internal_strlen((const char *)pathname) + 1);
+}
+
+POST_SYSCALL(mkdir)(long res, const void *pathname, long mode) {}
+
+PRE_SYSCALL(chdir)(const void *filename) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(chdir)(long res, const void *filename) {}
+
+PRE_SYSCALL(fchdir)(long fd) {}
+
+POST_SYSCALL(fchdir)(long res, long fd) {}
+
+PRE_SYSCALL(rmdir)(const void *pathname) {
+ if (pathname)
+ PRE_READ(pathname,
+ __sanitizer::internal_strlen((const char *)pathname) + 1);
+}
+
+POST_SYSCALL(rmdir)(long res, const void *pathname) {}
+
+PRE_SYSCALL(lookup_dcookie)(u64 cookie64, void *buf, long len) {}
+
+POST_SYSCALL(lookup_dcookie)(long res, u64 cookie64, void *buf, long len) {
+ if (res >= 0) {
+ if (buf)
+ POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
+ }
+}
+
+PRE_SYSCALL(quotactl)(long cmd, const void *special, long id, void *addr) {
+ if (special)
+ PRE_READ(special, __sanitizer::internal_strlen((const char *)special) + 1);
+}
+
+POST_SYSCALL(quotactl)(long res, long cmd, const void *special, long id,
+ void *addr) {}
+
+PRE_SYSCALL(getdents)(long fd, void *dirent, long count) {}
+
+POST_SYSCALL(getdents)(long res, long fd, void *dirent, long count) {
+ if (res >= 0) {
+ if (dirent) POST_WRITE(dirent, res);
+ }
+}
+
+PRE_SYSCALL(getdents64)(long fd, void *dirent, long count) {}
+
+POST_SYSCALL(getdents64)(long res, long fd, void *dirent, long count) {
+ if (res >= 0) {
+ if (dirent) POST_WRITE(dirent, res);
+ }
+}
+
+PRE_SYSCALL(setsockopt)(long fd, long level, long optname, void *optval,
+ long optlen) {}
+
+POST_SYSCALL(setsockopt)(long res, long fd, long level, long optname,
+ void *optval, long optlen) {
+ if (res >= 0) {
+ if (optval)
+ POST_WRITE(optval,
+ __sanitizer::internal_strlen((const char *)optval) + 1);
+ }
+}
+
+PRE_SYSCALL(getsockopt)(long fd, long level, long optname, void *optval,
+ void *optlen) {}
+
+POST_SYSCALL(getsockopt)(long res, long fd, long level, long optname,
+ void *optval, void *optlen) {
+ if (res >= 0) {
+ if (optval)
+ POST_WRITE(optval,
+ __sanitizer::internal_strlen((const char *)optval) + 1);
+ if (optlen) POST_WRITE(optlen, sizeof(int));
+ }
+}
+
+PRE_SYSCALL(bind)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {}
+
+POST_SYSCALL(bind)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
+ long arg2) {
+ if (res >= 0) {
+ if (arg1) POST_WRITE(arg1, sizeof(*arg1));
+ }
+}
+
+PRE_SYSCALL(connect)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {}
+
+POST_SYSCALL(connect)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
+ long arg2) {
+ if (res >= 0) {
+ if (arg1) POST_WRITE(arg1, sizeof(*arg1));
+ }
+}
+
+PRE_SYSCALL(accept)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {}
+
+POST_SYSCALL(accept)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
+ void *arg2) {
+ if (res >= 0) {
+ if (arg1) POST_WRITE(arg1, sizeof(*arg1));
+ if (arg2) POST_WRITE(arg2, sizeof(unsigned));
+ }
+}
+
+PRE_SYSCALL(accept4)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2,
+ long arg3) {}
+
+POST_SYSCALL(accept4)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
+ void *arg2, long arg3) {
+ if (res >= 0) {
+ if (arg1) POST_WRITE(arg1, sizeof(*arg1));
+ if (arg2) POST_WRITE(arg2, sizeof(unsigned));
+ }
+}
+
+PRE_SYSCALL(getsockname)(long arg0, sanitizer_kernel_sockaddr *arg1,
+ void *arg2) {}
+
+POST_SYSCALL(getsockname)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
+ void *arg2) {
+ if (res >= 0) {
+ if (arg1) POST_WRITE(arg1, sizeof(*arg1));
+ if (arg2) POST_WRITE(arg2, sizeof(unsigned));
+ }
+}
+
+PRE_SYSCALL(getpeername)(long arg0, sanitizer_kernel_sockaddr *arg1,
+ void *arg2) {}
+
+POST_SYSCALL(getpeername)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
+ void *arg2) {
+ if (res >= 0) {
+ if (arg1) POST_WRITE(arg1, sizeof(*arg1));
+ if (arg2) POST_WRITE(arg2, sizeof(unsigned));
+ }
+}
+
+PRE_SYSCALL(send)(long arg0, void *arg1, long arg2, long arg3) {}
+
+POST_SYSCALL(send)(long res, long arg0, void *arg1, long arg2, long arg3) {
+ if (res) {
+ if (arg1) POST_READ(arg1, res);
+ }
+}
+
+PRE_SYSCALL(sendto)(long arg0, void *arg1, long arg2, long arg3,
+ sanitizer_kernel_sockaddr *arg4, long arg5) {}
+
+POST_SYSCALL(sendto)(long res, long arg0, void *arg1, long arg2, long arg3,
+ sanitizer_kernel_sockaddr *arg4, long arg5) {
+ if (res >= 0) {
+ if (arg1) POST_READ(arg1, res);
+ if (arg4) POST_WRITE(arg4, sizeof(*arg4));
+ }
+}
+
+PRE_SYSCALL(sendmsg)(long fd, void *msg, long flags) {}
+
+POST_SYSCALL(sendmsg)(long res, long fd, void *msg, long flags) {
+ // FIXME: POST_READ
+}
+
+PRE_SYSCALL(sendmmsg)(long fd, void *msg, long vlen, long flags) {}
+
+POST_SYSCALL(sendmmsg)(long res, long fd, void *msg, long vlen, long flags) {
+ // FIXME: POST_READ
+}
+
+PRE_SYSCALL(recv)(long arg0, void *buf, long len, long flags) {}
+
+POST_SYSCALL(recv)(long res, void *buf, long len, long flags) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, res);
+ }
+}
+
+PRE_SYSCALL(recvfrom)(long arg0, void *buf, long len, long flags,
+ sanitizer_kernel_sockaddr *arg4, void *arg5) {}
+
+POST_SYSCALL(recvfrom)(long res, long arg0, void *buf, long len, long flags,
+ sanitizer_kernel_sockaddr *arg4, void *arg5) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, res);
+ if (arg4) POST_WRITE(arg4, sizeof(*arg4));
+ if (arg5) POST_WRITE(arg5, sizeof(int));
+ }
+}
+
+PRE_SYSCALL(socket)(long arg0, long arg1, long arg2) {}
+
+POST_SYSCALL(socket)(long res, long arg0, long arg1, long arg2) {}
+
+PRE_SYSCALL(socketpair)(long arg0, long arg1, long arg2, void *arg3) {}
+
+POST_SYSCALL(socketpair)(long res, long arg0, long arg1, long arg2,
+ void *arg3) {
+ if (res >= 0) {
+ if (arg3) POST_WRITE(arg3, sizeof(int));
+ }
+}
+
+PRE_SYSCALL(socketcall)(long call, void *args) {}
+
+POST_SYSCALL(socketcall)(long res, long call, void *args) {
+ if (res >= 0) {
+ if (args) POST_WRITE(args, sizeof(long));
+ }
+}
+
+PRE_SYSCALL(listen)(long arg0, long arg1) {}
+
+POST_SYSCALL(listen)(long res, long arg0, long arg1) {}
+
+PRE_SYSCALL(poll)(void *ufds, long nfds, long timeout) {}
+
+POST_SYSCALL(poll)(long res, __sanitizer_pollfd *ufds, long nfds,
+ long timeout) {
+ if (res >= 0) {
+ if (ufds) POST_WRITE(ufds, nfds * sizeof(*ufds));
+ }
+}
+
+PRE_SYSCALL(select)(long n, __sanitizer___kernel_fd_set *inp,
+ __sanitizer___kernel_fd_set *outp,
+ __sanitizer___kernel_fd_set *exp, void *tvp) {}
+
+POST_SYSCALL(select)(long res, long n, __sanitizer___kernel_fd_set *inp,
+ __sanitizer___kernel_fd_set *outp,
+ __sanitizer___kernel_fd_set *exp, void *tvp) {
+ if (res >= 0) {
+ if (inp) POST_WRITE(inp, sizeof(*inp));
+ if (outp) POST_WRITE(outp, sizeof(*outp));
+ if (exp) POST_WRITE(exp, sizeof(*exp));
+ if (tvp) POST_WRITE(tvp, timeval_sz);
+ }
+}
+
+PRE_SYSCALL(old_select)(void *arg) {}
+
+POST_SYSCALL(old_select)(long res, void *arg) {}
+
+PRE_SYSCALL(epoll_create)(long size) {}
+
+POST_SYSCALL(epoll_create)(long res, long size) {}
+
+PRE_SYSCALL(epoll_create1)(long flags) {}
+
+POST_SYSCALL(epoll_create1)(long res, long flags) {}
+
+PRE_SYSCALL(epoll_ctl)(long epfd, long op, long fd, void *event) {}
+
+POST_SYSCALL(epoll_ctl)(long res, long epfd, long op, long fd, void *event) {
+ if (res >= 0) {
+ if (event) POST_WRITE(event, struct_epoll_event_sz);
+ }
+}
+
+PRE_SYSCALL(epoll_wait)(long epfd, void *events, long maxevents, long timeout) {
+}
+
+POST_SYSCALL(epoll_wait)(long res, long epfd, void *events, long maxevents,
+ long timeout) {
+ if (res >= 0) {
+ if (events) POST_WRITE(events, struct_epoll_event_sz);
+ }
+}
+
+PRE_SYSCALL(epoll_pwait)(long epfd, void *events, long maxevents, long timeout,
+ const kernel_sigset_t *sigmask, long sigsetsize) {
+ if (sigmask) PRE_READ(sigmask, sigsetsize);
+}
+
+POST_SYSCALL(epoll_pwait)(long res, long epfd, void *events, long maxevents,
+ long timeout, const void *sigmask, long sigsetsize) {
+ if (res >= 0) {
+ if (events) POST_WRITE(events, struct_epoll_event_sz);
+ }
+}
+
+PRE_SYSCALL(gethostname)(void *name, long len) {}
+
+POST_SYSCALL(gethostname)(long res, void *name, long len) {
+ if (res >= 0) {
+ if (name)
+ POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
+ }
+}
+
+PRE_SYSCALL(sethostname)(void *name, long len) {}
+
+POST_SYSCALL(sethostname)(long res, void *name, long len) {
+ if (res >= 0) {
+ if (name)
+ POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
+ }
+}
+
+PRE_SYSCALL(setdomainname)(void *name, long len) {}
+
+POST_SYSCALL(setdomainname)(long res, void *name, long len) {
+ if (res >= 0) {
+ if (name)
+ POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
+ }
+}
+
+PRE_SYSCALL(newuname)(void *name) {}
+
+POST_SYSCALL(newuname)(long res, void *name) {
+ if (res >= 0) {
+ if (name) POST_WRITE(name, struct_new_utsname_sz);
+ }
+}
+
+PRE_SYSCALL(uname)(void *arg0) {}
+
+POST_SYSCALL(uname)(long res, void *arg0) {
+ if (res >= 0) {
+ if (arg0) POST_WRITE(arg0, struct_old_utsname_sz);
+ }
+}
+
+PRE_SYSCALL(olduname)(void *arg0) {}
+
+POST_SYSCALL(olduname)(long res, void *arg0) {
+ if (res >= 0) {
+ if (arg0) POST_WRITE(arg0, struct_oldold_utsname_sz);
+ }
+}
+
+PRE_SYSCALL(getrlimit)(long resource, void *rlim) {}
+
+POST_SYSCALL(getrlimit)(long res, long resource, void *rlim) {
+ if (res >= 0) {
+ if (rlim) POST_WRITE(rlim, struct_rlimit_sz);
+ }
+}
+
+PRE_SYSCALL(old_getrlimit)(long resource, void *rlim) {}
+
+POST_SYSCALL(old_getrlimit)(long res, long resource, void *rlim) {
+ if (res >= 0) {
+ if (rlim) POST_WRITE(rlim, struct_rlimit_sz);
+ }
+}
+
+PRE_SYSCALL(setrlimit)(long resource, void *rlim) {}
+
+POST_SYSCALL(setrlimit)(long res, long resource, void *rlim) {
+ if (res >= 0) {
+ if (rlim) POST_WRITE(rlim, struct_rlimit_sz);
+ }
+}
+
+#if !SANITIZER_ANDROID
+PRE_SYSCALL(prlimit64)(long pid, long resource, const void *new_rlim,
+ void *old_rlim) {
+ if (new_rlim) PRE_READ(new_rlim, struct_rlimit64_sz);
+}
+
+POST_SYSCALL(prlimit64)(long res, long pid, long resource, const void *new_rlim,
+ void *old_rlim) {
+ if (res >= 0) {
+ if (old_rlim) POST_WRITE(old_rlim, struct_rlimit64_sz);
+ }
+}
+#endif
+
+PRE_SYSCALL(getrusage)(long who, void *ru) {}
+
+POST_SYSCALL(getrusage)(long res, long who, void *ru) {
+ if (res >= 0) {
+ if (ru) POST_WRITE(ru, struct_rusage_sz);
+ }
+}
+
+PRE_SYSCALL(umask)(long mask) {}
+
+POST_SYSCALL(umask)(long res, long mask) {}
+
+PRE_SYSCALL(msgget)(long key, long msgflg) {}
+
+POST_SYSCALL(msgget)(long res, long key, long msgflg) {}
+
+PRE_SYSCALL(msgsnd)(long msqid, void *msgp, long msgsz, long msgflg) {
+ if (msgp) PRE_READ(msgp, msgsz);
+}
+
+POST_SYSCALL(msgsnd)(long res, long msqid, void *msgp, long msgsz,
+ long msgflg) {}
+
+PRE_SYSCALL(msgrcv)(long msqid, void *msgp, long msgsz, long msgtyp,
+ long msgflg) {}
+
+POST_SYSCALL(msgrcv)(long res, long msqid, void *msgp, long msgsz, long msgtyp,
+ long msgflg) {
+ if (res >= 0) {
+ if (msgp) POST_WRITE(msgp, res);
+ }
+}
+
+PRE_SYSCALL(msgctl)(long msqid, long cmd, void *buf) {}
+
+POST_SYSCALL(msgctl)(long res, long msqid, long cmd, void *buf) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, struct_msqid_ds_sz);
+ }
+}
+
+PRE_SYSCALL(semget)(long key, long nsems, long semflg) {}
+
+POST_SYSCALL(semget)(long res, long key, long nsems, long semflg) {}
+
+PRE_SYSCALL(semop)(long semid, void *sops, long nsops) {}
+
+POST_SYSCALL(semop)(long res, long semid, void *sops, long nsops) {}
+
+PRE_SYSCALL(semctl)(long semid, long semnum, long cmd, void *arg) {}
+
+POST_SYSCALL(semctl)(long res, long semid, long semnum, long cmd, void *arg) {}
+
+PRE_SYSCALL(semtimedop)(long semid, void *sops, long nsops,
+ const void *timeout) {
+ if (timeout) PRE_READ(timeout, struct_timespec_sz);
+}
+
+POST_SYSCALL(semtimedop)(long res, long semid, void *sops, long nsops,
+ const void *timeout) {}
+
+PRE_SYSCALL(shmat)(long shmid, void *shmaddr, long shmflg) {}
+
+POST_SYSCALL(shmat)(long res, long shmid, void *shmaddr, long shmflg) {
+ if (res >= 0) {
+ if (shmaddr)
+ POST_WRITE(shmaddr,
+ __sanitizer::internal_strlen((const char *)shmaddr) + 1);
+ }
+}
+
+PRE_SYSCALL(shmget)(long key, long size, long flag) {}
+
+POST_SYSCALL(shmget)(long res, long key, long size, long flag) {}
+
+PRE_SYSCALL(shmdt)(void *shmaddr) {}
+
+POST_SYSCALL(shmdt)(long res, void *shmaddr) {
+ if (res >= 0) {
+ if (shmaddr)
+ POST_WRITE(shmaddr,
+ __sanitizer::internal_strlen((const char *)shmaddr) + 1);
+ }
+}
+
+PRE_SYSCALL(ipc)(long call, long first, long second, long third, void *ptr,
+ long fifth) {}
+
+POST_SYSCALL(ipc)(long res, long call, long first, long second, long third,
+ void *ptr, long fifth) {}
+
+#if !SANITIZER_ANDROID
+PRE_SYSCALL(shmctl)(long shmid, long cmd, void *buf) {}
+
+POST_SYSCALL(shmctl)(long res, long shmid, long cmd, void *buf) {
+ if (res >= 0) {
+ if (buf) POST_WRITE(buf, sizeof(__sanitizer_shmid_ds));
+ }
+}
+
+PRE_SYSCALL(mq_open)(const void *name, long oflag, long mode, void *attr) {
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(mq_open)(long res, const void *name, long oflag, long mode,
+ void *attr) {
+ if (res >= 0) {
+ if (attr) POST_WRITE(attr, struct_mq_attr_sz);
+ }
+}
+
+PRE_SYSCALL(mq_unlink)(const void *name) {
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(mq_unlink)(long res, const void *name) {}
+
+PRE_SYSCALL(mq_timedsend)(long mqdes, const void *msg_ptr, long msg_len,
+ long msg_prio, const void *abs_timeout) {
+ if (msg_ptr) PRE_READ(msg_ptr, msg_len);
+ if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz);
+}
+
+POST_SYSCALL(mq_timedsend)(long res, long mqdes, const void *msg_ptr,
+ long msg_len, long msg_prio,
+ const void *abs_timeout) {}
+
+PRE_SYSCALL(mq_timedreceive)(long mqdes, void *msg_ptr, long msg_len,
+ void *msg_prio, const void *abs_timeout) {
+ if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz);
+}
+
+POST_SYSCALL(mq_timedreceive)(long res, long mqdes, void *msg_ptr, long msg_len,
+ int *msg_prio, const void *abs_timeout) {
+ if (res >= 0) {
+ if (msg_ptr) POST_WRITE(msg_ptr, res);
+ if (msg_prio) POST_WRITE(msg_prio, sizeof(*msg_prio));
+ }
+}
+
+PRE_SYSCALL(mq_notify)(long mqdes, const void *notification) {
+ if (notification) PRE_READ(notification, struct_sigevent_sz);
+}
+
+POST_SYSCALL(mq_notify)(long res, long mqdes, const void *notification) {}
+
+PRE_SYSCALL(mq_getsetattr)(long mqdes, const void *mqstat, void *omqstat) {
+ if (mqstat) PRE_READ(mqstat, struct_mq_attr_sz);
+}
+
+POST_SYSCALL(mq_getsetattr)(long res, long mqdes, const void *mqstat,
+ void *omqstat) {
+ if (res >= 0) {
+ if (omqstat) POST_WRITE(omqstat, struct_mq_attr_sz);
+ }
+}
+#endif // SANITIZER_ANDROID
+
+PRE_SYSCALL(pciconfig_iobase)(long which, long bus, long devfn) {}
+
+POST_SYSCALL(pciconfig_iobase)(long res, long which, long bus, long devfn) {}
+
+PRE_SYSCALL(pciconfig_read)(long bus, long dfn, long off, long len, void *buf) {
+}
+
+POST_SYSCALL(pciconfig_read)(long res, long bus, long dfn, long off, long len,
+ void *buf) {}
+
+PRE_SYSCALL(pciconfig_write)(long bus, long dfn, long off, long len,
+ void *buf) {}
+
+POST_SYSCALL(pciconfig_write)(long res, long bus, long dfn, long off, long len,
+ void *buf) {}
+
+PRE_SYSCALL(swapon)(const void *specialfile, long swap_flags) {
+ if (specialfile)
+ PRE_READ(specialfile,
+ __sanitizer::internal_strlen((const char *)specialfile) + 1);
+}
+
+POST_SYSCALL(swapon)(long res, const void *specialfile, long swap_flags) {}
+
+PRE_SYSCALL(swapoff)(const void *specialfile) {
+ if (specialfile)
+ PRE_READ(specialfile,
+ __sanitizer::internal_strlen((const char *)specialfile) + 1);
+}
+
+POST_SYSCALL(swapoff)(long res, const void *specialfile) {}
+
+PRE_SYSCALL(sysctl)(__sanitizer___sysctl_args *args) {
+ if (args) {
+ if (args->name) PRE_READ(args->name, args->nlen * sizeof(*args->name));
+ if (args->newval) PRE_READ(args->name, args->newlen);
+ }
+}
+
+POST_SYSCALL(sysctl)(long res, __sanitizer___sysctl_args *args) {
+ if (res >= 0) {
+ if (args && args->oldval && args->oldlenp) {
+ POST_WRITE(args->oldlenp, sizeof(*args->oldlenp));
+ POST_WRITE(args->oldval, *args->oldlenp);
+ }
+ }
+}
+
+PRE_SYSCALL(sysinfo)(void *info) {}
+
+POST_SYSCALL(sysinfo)(long res, void *info) {
+ if (res >= 0) {
+ if (info) POST_WRITE(info, struct_sysinfo_sz);
+ }
+}
+
+PRE_SYSCALL(sysfs)(long option, long arg1, long arg2) {}
+
+POST_SYSCALL(sysfs)(long res, long option, long arg1, long arg2) {}
+
+PRE_SYSCALL(syslog)(long type, void *buf, long len) {}
+
+POST_SYSCALL(syslog)(long res, long type, void *buf, long len) {
+ if (res >= 0) {
+ if (buf)
+ POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
+ }
+}
+
+PRE_SYSCALL(uselib)(const void *library) {
+ if (library)
+ PRE_READ(library, __sanitizer::internal_strlen((const char *)library) + 1);
+}
+
+POST_SYSCALL(uselib)(long res, const void *library) {}
+
+PRE_SYSCALL(ni_syscall)() {}
+
+POST_SYSCALL(ni_syscall)(long res) {}
+
+PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) {
+#if defined(__i386) || defined (__x86_64)
+ if (data) {
+ if (request == ptrace_setregs) {
+ PRE_READ((void *)data, struct_user_regs_struct_sz);
+ } else if (request == ptrace_setfpregs) {
+ PRE_READ((void *)data, struct_user_fpregs_struct_sz);
+ } else if (request == ptrace_setfpxregs) {
+ PRE_READ((void *)data, struct_user_fpxregs_struct_sz);
+ } else if (request == ptrace_setsiginfo) {
+ PRE_READ((void *)data, siginfo_t_sz);
+ } else if (request == ptrace_setregset) {
+ __sanitizer_iovec *iov = (__sanitizer_iovec *)data;
+ PRE_READ(iov->iov_base, iov->iov_len);
+ }
+ }
+#endif
+}
+
+POST_SYSCALL(ptrace)(long res, long request, long pid, long addr, long data) {
+#if defined(__i386) || defined (__x86_64)
+ if (res >= 0 && data) {
+ // Note that this is different from the interceptor in
+ // sanitizer_common_interceptors.inc.
+ // PEEK* requests return resulting values through data pointer.
+ if (request == ptrace_getregs) {
+ POST_WRITE((void *)data, struct_user_regs_struct_sz);
+ } else if (request == ptrace_getfpregs) {
+ POST_WRITE((void *)data, struct_user_fpregs_struct_sz);
+ } else if (request == ptrace_getfpxregs) {
+ POST_WRITE((void *)data, struct_user_fpxregs_struct_sz);
+ } else if (request == ptrace_getsiginfo) {
+ POST_WRITE((void *)data, siginfo_t_sz);
+ } else if (request == ptrace_getregset) {
+ __sanitizer_iovec *iov = (__sanitizer_iovec *)data;
+ POST_WRITE(iov->iov_base, iov->iov_len);
+ } else if (request == ptrace_peekdata || request == ptrace_peektext ||
+ request == ptrace_peekuser) {
+ POST_WRITE((void *)data, sizeof(void *));
+ }
+ }
+#endif
+}
+
+PRE_SYSCALL(add_key)(const void *_type, const void *_description,
+ const void *_payload, long plen, long destringid) {
+ if (_type)
+ PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1);
+ if (_description)
+ PRE_READ(_description,
+ __sanitizer::internal_strlen((const char *)_description) + 1);
+}
+
+POST_SYSCALL(add_key)(long res, const void *_type, const void *_description,
+ const void *_payload, long plen, long destringid) {}
+
+PRE_SYSCALL(request_key)(const void *_type, const void *_description,
+ const void *_callout_info, long destringid) {
+ if (_type)
+ PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1);
+ if (_description)
+ PRE_READ(_description,
+ __sanitizer::internal_strlen((const char *)_description) + 1);
+ if (_callout_info)
+ PRE_READ(_callout_info,
+ __sanitizer::internal_strlen((const char *)_callout_info) + 1);
+}
+
+POST_SYSCALL(request_key)(long res, const void *_type, const void *_description,
+ const void *_callout_info, long destringid) {}
+
+PRE_SYSCALL(keyctl)(long cmd, long arg2, long arg3, long arg4, long arg5) {}
+
+POST_SYSCALL(keyctl)(long res, long cmd, long arg2, long arg3, long arg4,
+ long arg5) {}
+
+PRE_SYSCALL(ioprio_set)(long which, long who, long ioprio) {}
+
+POST_SYSCALL(ioprio_set)(long res, long which, long who, long ioprio) {}
+
+PRE_SYSCALL(ioprio_get)(long which, long who) {}
+
+POST_SYSCALL(ioprio_get)(long res, long which, long who) {}
+
+PRE_SYSCALL(set_mempolicy)(long mode, void *nmask, long maxnode) {}
+
+POST_SYSCALL(set_mempolicy)(long res, long mode, void *nmask, long maxnode) {
+ if (res >= 0) {
+ if (nmask) POST_WRITE(nmask, sizeof(long));
+ }
+}
+
+PRE_SYSCALL(migrate_pages)(long pid, long maxnode, const void *from,
+ const void *to) {
+ if (from) PRE_READ(from, sizeof(long));
+ if (to) PRE_READ(to, sizeof(long));
+}
+
+POST_SYSCALL(migrate_pages)(long res, long pid, long maxnode, const void *from,
+ const void *to) {}
+
+PRE_SYSCALL(move_pages)(long pid, long nr_pages, const void **pages,
+ const int *nodes, int *status, long flags) {
+ if (pages) PRE_READ(pages, nr_pages * sizeof(*pages));
+ if (nodes) PRE_READ(nodes, nr_pages * sizeof(*nodes));
+}
+
+POST_SYSCALL(move_pages)(long res, long pid, long nr_pages, const void **pages,
+ const int *nodes, int *status, long flags) {
+ if (res >= 0) {
+ if (status) POST_WRITE(status, nr_pages * sizeof(*status));
+ }
+}
+
+PRE_SYSCALL(mbind)(long start, long len, long mode, void *nmask, long maxnode,
+ long flags) {}
+
+POST_SYSCALL(mbind)(long res, long start, long len, long mode, void *nmask,
+ long maxnode, long flags) {
+ if (res >= 0) {
+ if (nmask) POST_WRITE(nmask, sizeof(long));
+ }
+}
+
+PRE_SYSCALL(get_mempolicy)(void *policy, void *nmask, long maxnode, long addr,
+ long flags) {}
+
+POST_SYSCALL(get_mempolicy)(long res, void *policy, void *nmask, long maxnode,
+ long addr, long flags) {
+ if (res >= 0) {
+ if (policy) POST_WRITE(policy, sizeof(int));
+ if (nmask) POST_WRITE(nmask, sizeof(long));
+ }
+}
+
+PRE_SYSCALL(inotify_init)() {}
+
+POST_SYSCALL(inotify_init)(long res) {}
+
+PRE_SYSCALL(inotify_init1)(long flags) {}
+
+POST_SYSCALL(inotify_init1)(long res, long flags) {}
+
+PRE_SYSCALL(inotify_add_watch)(long fd, const void *path, long mask) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+}
+
+POST_SYSCALL(inotify_add_watch)(long res, long fd, const void *path,
+ long mask) {}
+
+PRE_SYSCALL(inotify_rm_watch)(long fd, long wd) {}
+
+POST_SYSCALL(inotify_rm_watch)(long res, long fd, long wd) {}
+
+PRE_SYSCALL(spu_run)(long fd, void *unpc, void *ustatus) {}
+
+POST_SYSCALL(spu_run)(long res, long fd, unsigned *unpc, unsigned *ustatus) {
+ if (res >= 0) {
+ if (unpc) POST_WRITE(unpc, sizeof(*unpc));
+ if (ustatus) POST_WRITE(ustatus, sizeof(*ustatus));
+ }
+}
+
+PRE_SYSCALL(spu_create)(const void *name, long flags, long mode, long fd) {
+ if (name)
+ PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
+}
+
+POST_SYSCALL(spu_create)(long res, const void *name, long flags, long mode,
+ long fd) {}
+
+PRE_SYSCALL(mknodat)(long dfd, const void *filename, long mode, long dev) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(mknodat)(long res, long dfd, const void *filename, long mode,
+ long dev) {}
+
+PRE_SYSCALL(mkdirat)(long dfd, const void *pathname, long mode) {
+ if (pathname)
+ PRE_READ(pathname,
+ __sanitizer::internal_strlen((const char *)pathname) + 1);
+}
+
+POST_SYSCALL(mkdirat)(long res, long dfd, const void *pathname, long mode) {}
+
+PRE_SYSCALL(unlinkat)(long dfd, const void *pathname, long flag) {
+ if (pathname)
+ PRE_READ(pathname,
+ __sanitizer::internal_strlen((const char *)pathname) + 1);
+}
+
+POST_SYSCALL(unlinkat)(long res, long dfd, const void *pathname, long flag) {}
+
+PRE_SYSCALL(symlinkat)(const void *oldname, long newdfd, const void *newname) {
+ if (oldname)
+ PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
+ if (newname)
+ PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
+}
+
+POST_SYSCALL(symlinkat)(long res, const void *oldname, long newdfd,
+ const void *newname) {}
+
+PRE_SYSCALL(linkat)(long olddfd, const void *oldname, long newdfd,
+ const void *newname, long flags) {
+ if (oldname)
+ PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
+ if (newname)
+ PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
+}
+
+POST_SYSCALL(linkat)(long res, long olddfd, const void *oldname, long newdfd,
+ const void *newname, long flags) {}
+
+PRE_SYSCALL(renameat)(long olddfd, const void *oldname, long newdfd,
+ const void *newname) {
+ if (oldname)
+ PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
+ if (newname)
+ PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
+}
+
+POST_SYSCALL(renameat)(long res, long olddfd, const void *oldname, long newdfd,
+ const void *newname) {}
+
+PRE_SYSCALL(futimesat)(long dfd, const void *filename, void *utimes) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(futimesat)(long res, long dfd, const void *filename,
+ void *utimes) {
+ if (res >= 0) {
+ if (utimes) POST_WRITE(utimes, timeval_sz);
+ }
+}
+
+PRE_SYSCALL(faccessat)(long dfd, const void *filename, long mode) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(faccessat)(long res, long dfd, const void *filename, long mode) {}
+
+PRE_SYSCALL(fchmodat)(long dfd, const void *filename, long mode) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(fchmodat)(long res, long dfd, const void *filename, long mode) {}
+
+PRE_SYSCALL(fchownat)(long dfd, const void *filename, long user, long group,
+ long flag) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(fchownat)(long res, long dfd, const void *filename, long user,
+ long group, long flag) {}
+
+PRE_SYSCALL(openat)(long dfd, const void *filename, long flags, long mode) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(openat)(long res, long dfd, const void *filename, long flags,
+ long mode) {}
+
+PRE_SYSCALL(newfstatat)(long dfd, const void *filename, void *statbuf,
+ long flag) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(newfstatat)(long res, long dfd, const void *filename,
+ void *statbuf, long flag) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
+ }
+}
+
+PRE_SYSCALL(fstatat64)(long dfd, const void *filename, void *statbuf,
+ long flag) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(fstatat64)(long res, long dfd, const void *filename, void *statbuf,
+ long flag) {
+ if (res >= 0) {
+ if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
+ }
+}
+
+PRE_SYSCALL(readlinkat)(long dfd, const void *path, void *buf, long bufsiz) {
+ if (path)
+ PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
+}
+
+POST_SYSCALL(readlinkat)(long res, long dfd, const void *path, void *buf,
+ long bufsiz) {
+ if (res >= 0) {
+ if (buf)
+ POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
+ }
+}
+
+PRE_SYSCALL(utimensat)(long dfd, const void *filename, void *utimes,
+ long flags) {
+ if (filename)
+ PRE_READ(filename,
+ __sanitizer::internal_strlen((const char *)filename) + 1);
+}
+
+POST_SYSCALL(utimensat)(long res, long dfd, const void *filename, void *utimes,
+ long flags) {
+ if (res >= 0) {
+ if (utimes) POST_WRITE(utimes, struct_timespec_sz);
+ }
+}
+
+PRE_SYSCALL(unshare)(long unshare_flags) {}
+
+POST_SYSCALL(unshare)(long res, long unshare_flags) {}
+
+PRE_SYSCALL(splice)(long fd_in, void *off_in, long fd_out, void *off_out,
+ long len, long flags) {}
+
+POST_SYSCALL(splice)(long res, long fd_in, void *off_in, long fd_out,
+ void *off_out, long len, long flags) {
+ if (res >= 0) {
+ if (off_in) POST_WRITE(off_in, sizeof(long long));
+ if (off_out) POST_WRITE(off_out, sizeof(long long));
+ }
+}
+
+PRE_SYSCALL(vmsplice)(long fd, const __sanitizer_iovec *iov, long nr_segs,
+ long flags) {}
+
+POST_SYSCALL(vmsplice)(long res, long fd, const __sanitizer_iovec *iov,
+ long nr_segs, long flags) {
+ if (res >= 0) {
+ if (iov) kernel_read_iovec(iov, nr_segs, res);
+ }
+}
+
+PRE_SYSCALL(tee)(long fdin, long fdout, long len, long flags) {}
+
+POST_SYSCALL(tee)(long res, long fdin, long fdout, long len, long flags) {}
+
+PRE_SYSCALL(get_robust_list)(long pid, void *head_ptr, void *len_ptr) {}
+
+POST_SYSCALL(get_robust_list)(long res, long pid, void *head_ptr,
+ void *len_ptr) {}
+
+PRE_SYSCALL(set_robust_list)(void *head, long len) {}
+
+POST_SYSCALL(set_robust_list)(long res, void *head, long len) {}
+
+PRE_SYSCALL(getcpu)(void *cpu, void *node, void *cache) {}
+
+POST_SYSCALL(getcpu)(long res, void *cpu, void *node, void *cache) {
+ if (res >= 0) {
+ if (cpu) POST_WRITE(cpu, sizeof(unsigned));
+ if (node) POST_WRITE(node, sizeof(unsigned));
+ // The third argument to this system call is nowadays unused.
+ }
+}
+
+PRE_SYSCALL(signalfd)(long ufd, void *user_mask, long sizemask) {}
+
+POST_SYSCALL(signalfd)(long res, long ufd, kernel_sigset_t *user_mask,
+ long sizemask) {
+ if (res >= 0) {
+ if (user_mask) POST_WRITE(user_mask, sizemask);
+ }
+}
+
+PRE_SYSCALL(signalfd4)(long ufd, void *user_mask, long sizemask, long flags) {}
+
+POST_SYSCALL(signalfd4)(long res, long ufd, kernel_sigset_t *user_mask,
+ long sizemask, long flags) {
+ if (res >= 0) {
+ if (user_mask) POST_WRITE(user_mask, sizemask);
+ }
+}
+
+PRE_SYSCALL(timerfd_create)(long clockid, long flags) {}
+
+POST_SYSCALL(timerfd_create)(long res, long clockid, long flags) {}
+
+PRE_SYSCALL(timerfd_settime)(long ufd, long flags, const void *utmr,
+ void *otmr) {
+ if (utmr) PRE_READ(utmr, struct_itimerspec_sz);
+}
+
+POST_SYSCALL(timerfd_settime)(long res, long ufd, long flags, const void *utmr,
+ void *otmr) {
+ if (res >= 0) {
+ if (otmr) POST_WRITE(otmr, struct_itimerspec_sz);
+ }
+}
+
+PRE_SYSCALL(timerfd_gettime)(long ufd, void *otmr) {}
+
+POST_SYSCALL(timerfd_gettime)(long res, long ufd, void *otmr) {
+ if (res >= 0) {
+ if (otmr) POST_WRITE(otmr, struct_itimerspec_sz);
+ }
+}
+
+PRE_SYSCALL(eventfd)(long count) {}
+
+POST_SYSCALL(eventfd)(long res, long count) {}
+
+PRE_SYSCALL(eventfd2)(long count, long flags) {}
+
+POST_SYSCALL(eventfd2)(long res, long count, long flags) {}
+
+PRE_SYSCALL(old_readdir)(long arg0, void *arg1, long arg2) {}
+
+POST_SYSCALL(old_readdir)(long res, long arg0, void *arg1, long arg2) {
+ // Missing definition of 'struct old_linux_dirent'.
+}
+
+PRE_SYSCALL(pselect6)(long arg0, __sanitizer___kernel_fd_set *arg1,
+ __sanitizer___kernel_fd_set *arg2,
+ __sanitizer___kernel_fd_set *arg3, void *arg4,
+ void *arg5) {}
+
+POST_SYSCALL(pselect6)(long res, long arg0, __sanitizer___kernel_fd_set *arg1,
+ __sanitizer___kernel_fd_set *arg2,
+ __sanitizer___kernel_fd_set *arg3, void *arg4,
+ void *arg5) {
+ if (res >= 0) {
+ if (arg1) POST_WRITE(arg1, sizeof(*arg1));
+ if (arg2) POST_WRITE(arg2, sizeof(*arg2));
+ if (arg3) POST_WRITE(arg3, sizeof(*arg3));
+ if (arg4) POST_WRITE(arg4, struct_timespec_sz);
+ }
+}
+
+PRE_SYSCALL(ppoll)(__sanitizer_pollfd *arg0, long arg1, void *arg2,
+ const kernel_sigset_t *arg3, long arg4) {
+ if (arg3) PRE_READ(arg3, arg4);
+}
+
+POST_SYSCALL(ppoll)(long res, __sanitizer_pollfd *arg0, long arg1, void *arg2,
+ const void *arg3, long arg4) {
+ if (res >= 0) {
+ if (arg0) POST_WRITE(arg0, sizeof(*arg0));
+ if (arg2) POST_WRITE(arg2, struct_timespec_sz);
+ }
+}
+
+PRE_SYSCALL(syncfs)(long fd) {}
+
+POST_SYSCALL(syncfs)(long res, long fd) {}
+
+PRE_SYSCALL(perf_event_open)(__sanitizer_perf_event_attr *attr_uptr, long pid,
+ long cpu, long group_fd, long flags) {
+ if (attr_uptr) PRE_READ(attr_uptr, attr_uptr->size);
+}
+
+POST_SYSCALL(perf_event_open)(long res, __sanitizer_perf_event_attr *attr_uptr,
+ long pid, long cpu, long group_fd, long flags) {}
+
+PRE_SYSCALL(mmap_pgoff)(long addr, long len, long prot, long flags, long fd,
+ long pgoff) {}
+
+POST_SYSCALL(mmap_pgoff)(long res, long addr, long len, long prot, long flags,
+ long fd, long pgoff) {}
+
+PRE_SYSCALL(old_mmap)(void *arg) {}
+
+POST_SYSCALL(old_mmap)(long res, void *arg) {}
+
+PRE_SYSCALL(name_to_handle_at)(long dfd, const void *name, void *handle,
+ void *mnt_id, long flag) {}
+
+POST_SYSCALL(name_to_handle_at)(long res, long dfd, const void *name,
+ void *handle, void *mnt_id, long flag) {}
+
+PRE_SYSCALL(open_by_handle_at)(long mountdirfd, void *handle, long flags) {}
+
+POST_SYSCALL(open_by_handle_at)(long res, long mountdirfd, void *handle,
+ long flags) {}
+
+PRE_SYSCALL(setns)(long fd, long nstype) {}
+
+POST_SYSCALL(setns)(long res, long fd, long nstype) {}
+
+PRE_SYSCALL(process_vm_readv)(long pid, const __sanitizer_iovec *lvec,
+ long liovcnt, const void *rvec, long riovcnt,
+ long flags) {}
+
+POST_SYSCALL(process_vm_readv)(long res, long pid,
+ const __sanitizer_iovec *lvec, long liovcnt,
+ const void *rvec, long riovcnt, long flags) {
+ if (res >= 0) {
+ if (lvec) kernel_write_iovec(lvec, liovcnt, res);
+ }
+}
+
+PRE_SYSCALL(process_vm_writev)(long pid, const __sanitizer_iovec *lvec,
+ long liovcnt, const void *rvec, long riovcnt,
+ long flags) {}
+
+POST_SYSCALL(process_vm_writev)(long res, long pid,
+ const __sanitizer_iovec *lvec, long liovcnt,
+ const void *rvec, long riovcnt, long flags) {
+ if (res >= 0) {
+ if (lvec) kernel_read_iovec(lvec, liovcnt, res);
+ }
+}
+
+PRE_SYSCALL(fork)() {
+ COMMON_SYSCALL_PRE_FORK();
+}
+
+POST_SYSCALL(fork)(long res) {
+ COMMON_SYSCALL_POST_FORK(res);
+}
+
+PRE_SYSCALL(vfork)() {
+ COMMON_SYSCALL_PRE_FORK();
+}
+
+POST_SYSCALL(vfork)(long res) {
+ COMMON_SYSCALL_POST_FORK(res);
+}
} // extern "C"
#undef PRE_SYSCALL
@@ -146,3 +2783,5 @@ POST_SYSCALL(waitpid)(long res, int pid, int *status, int options) {
#undef POST_SYSCALL
#undef POST_READ
#undef POST_WRITE
+
+#endif // SANITIZER_LINUX
diff --git a/lib/sanitizer_common/sanitizer_coverage.cc b/lib/sanitizer_common/sanitizer_coverage.cc
new file mode 100644
index 000000000000..9e7a0f8b95fb
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_coverage.cc
@@ -0,0 +1,113 @@
+//===-- sanitizer_coverage.cc ---------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Sanitizer Coverage.
+// This file implements run-time support for a poor man's coverage tool.
+//
+// Compiler instrumentation:
+// For every function F the compiler injects the following code:
+// if (*Guard) {
+// __sanitizer_cov(&F);
+// *Guard = 1;
+// }
+// It's fine to call __sanitizer_cov more than once for a given function.
+//
+// Run-time:
+// - __sanitizer_cov(pc): record that we've executed a given PC.
+// - __sanitizer_cov_dump: dump the coverage data to disk.
+// For every module of the current process that has coverage data
+// this will create a file module_name.PID.sancov. The file format is simple:
+// it's just a sorted sequence of 4-byte offsets in the module.
+//
+// Eventually, this coverage implementation should be obsoleted by a more
+// powerful general purpose Clang/LLVM coverage instrumentation.
+// Consider this implementation as prototype.
+//
+// FIXME: support (or at least test with) dlclose.
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_allocator_internal.h"
+#include "sanitizer_common.h"
+#include "sanitizer_libc.h"
+#include "sanitizer_mutex.h"
+#include "sanitizer_procmaps.h"
+#include "sanitizer_flags.h"
+
+struct CovData {
+ BlockingMutex mu;
+ InternalMmapVector<uptr> v;
+};
+
+static uptr cov_data_placeholder[sizeof(CovData) / sizeof(uptr)];
+COMPILER_CHECK(sizeof(cov_data_placeholder) >= sizeof(CovData));
+static CovData *cov_data = reinterpret_cast<CovData*>(cov_data_placeholder);
+
+namespace __sanitizer {
+
+// Simply add the pc into the vector under lock. If the function is called more
+// than once for a given PC it will be inserted multiple times, which is fine.
+static void CovAdd(uptr pc) {
+ BlockingMutexLock lock(&cov_data->mu);
+ cov_data->v.push_back(pc);
+}
+
+static inline bool CompareLess(const uptr &a, const uptr &b) {
+ return a < b;
+}
+
+// Dump the coverage on disk.
+void CovDump() {
+#if !SANITIZER_WINDOWS
+ BlockingMutexLock lock(&cov_data->mu);
+ InternalMmapVector<uptr> &v = cov_data->v;
+ InternalSort(&v, v.size(), CompareLess);
+ InternalMmapVector<u32> offsets(v.size());
+ const uptr *vb = v.data();
+ const uptr *ve = vb + v.size();
+ MemoryMappingLayout proc_maps(/*cache_enabled*/false);
+ uptr mb, me, off, prot;
+ InternalScopedBuffer<char> module(4096);
+ InternalScopedBuffer<char> path(4096 * 2);
+ for (int i = 0;
+ proc_maps.Next(&mb, &me, &off, module.data(), module.size(), &prot);
+ i++) {
+ if ((prot & MemoryMappingLayout::kProtectionExecute) == 0)
+ continue;
+ if (vb >= ve) break;
+ if (mb <= *vb && *vb < me) {
+ offsets.clear();
+ const uptr *old_vb = vb;
+ CHECK_LE(off, *vb);
+ for (; vb < ve && *vb < me; vb++) {
+ uptr diff = *vb - (i ? mb : 0) + off;
+ CHECK_LE(diff, 0xffffffffU);
+ offsets.push_back(static_cast<u32>(diff));
+ }
+ char *module_name = StripModuleName(module.data());
+ internal_snprintf((char *)path.data(), path.size(), "%s.%zd.sancov",
+ module_name, internal_getpid());
+ InternalFree(module_name);
+ uptr fd = OpenFile(path.data(), true);
+ internal_write(fd, offsets.data(), offsets.size() * sizeof(u32));
+ internal_close(fd);
+ if (common_flags()->verbosity)
+ Report(" CovDump: %s: %zd PCs written\n", path.data(), vb - old_vb);
+ }
+ }
+#endif // !SANITIZER_WINDOWS
+}
+
+} // namespace __sanitizer
+
+extern "C" {
+SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_cov(void *pc) {
+ CovAdd(reinterpret_cast<uptr>(pc));
+}
+SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_cov_dump() { CovDump(); }
+} // extern "C"
diff --git a/lib/sanitizer_common/sanitizer_flags.cc b/lib/sanitizer_common/sanitizer_flags.cc
index b7218e5ad212..924ed4bc014f 100644
--- a/lib/sanitizer_common/sanitizer_flags.cc
+++ b/lib/sanitizer_common/sanitizer_flags.cc
@@ -18,15 +18,42 @@
namespace __sanitizer {
-CommonFlags common_flags_dont_use_directly;
+void SetCommonFlagDefaults() {
+ CommonFlags *f = common_flags();
+ f->symbolize = true;
+ f->external_symbolizer_path = "";
+ f->strip_path_prefix = "";
+ f->fast_unwind_on_fatal = false;
+ f->fast_unwind_on_malloc = true;
+ f->handle_ioctl = false;
+ f->malloc_context_size = 1;
+ f->log_path = "stderr";
+ f->verbosity = 0;
+ f->detect_leaks = false;
+ f->leak_check_at_exit = true;
+ f->allocator_may_return_null = false;
+ f->print_summary = true;
+}
void ParseCommonFlagsFromString(const char *str) {
CommonFlags *f = common_flags();
- ParseFlag(str, &f->malloc_context_size, "malloc_context_size");
+ ParseFlag(str, &f->symbolize, "symbolize");
+ ParseFlag(str, &f->external_symbolizer_path, "external_symbolizer_path");
ParseFlag(str, &f->strip_path_prefix, "strip_path_prefix");
ParseFlag(str, &f->fast_unwind_on_fatal, "fast_unwind_on_fatal");
ParseFlag(str, &f->fast_unwind_on_malloc, "fast_unwind_on_malloc");
- ParseFlag(str, &f->symbolize, "symbolize");
+ ParseFlag(str, &f->handle_ioctl, "handle_ioctl");
+ ParseFlag(str, &f->malloc_context_size, "malloc_context_size");
+ ParseFlag(str, &f->log_path, "log_path");
+ ParseFlag(str, &f->verbosity, "verbosity");
+ ParseFlag(str, &f->detect_leaks, "detect_leaks");
+ ParseFlag(str, &f->leak_check_at_exit, "leak_check_at_exit");
+ ParseFlag(str, &f->allocator_may_return_null, "allocator_may_return_null");
+ ParseFlag(str, &f->print_summary, "print_summary");
+
+ // Do a sanity check for certain flags.
+ if (f->malloc_context_size < 1)
+ f->malloc_context_size = 1;
}
static bool GetFlagValue(const char *env, const char *name,
@@ -97,7 +124,7 @@ void ParseFlag(const char *env, int *flag, const char *name) {
int value_length;
if (!GetFlagValue(env, name, &value, &value_length))
return;
- *flag = internal_atoll(value);
+ *flag = static_cast<int>(internal_atoll(value));
}
static LowLevelAllocator allocator_for_flags;
diff --git a/lib/sanitizer_common/sanitizer_flags.h b/lib/sanitizer_common/sanitizer_flags.h
index e97ce6a87188..9461dff80330 100644
--- a/lib/sanitizer_common/sanitizer_flags.h
+++ b/lib/sanitizer_common/sanitizer_flags.h
@@ -33,16 +33,34 @@ struct CommonFlags {
bool fast_unwind_on_fatal;
// Use fast (frame-pointer-based) unwinder on malloc/free (if available).
bool fast_unwind_on_malloc;
+ // Intercept and handle ioctl requests.
+ bool handle_ioctl;
// Max number of stack frames kept for each allocation/deallocation.
int malloc_context_size;
+ // Write logs to "log_path.pid".
+ // The special values are "stdout" and "stderr".
+ // The default is "stderr".
+ const char *log_path;
+ // Verbosity level (0 - silent, 1 - a bit of output, 2+ - more output).
+ int verbosity;
+ // Enable memory leak detection.
+ bool detect_leaks;
+ // Invoke leak checking in an atexit handler. Has no effect if
+ // detect_leaks=false, or if __lsan_do_leak_check() is called before the
+ // handler has a chance to run.
+ bool leak_check_at_exit;
+ // If false, the allocator will crash instead of returning 0 on out-of-memory.
+ bool allocator_may_return_null;
+ // If false, disable printing error summaries in addition to error reports.
+ bool print_summary;
};
-extern CommonFlags common_flags_dont_use_directly;
-
inline CommonFlags *common_flags() {
- return &common_flags_dont_use_directly;
+ static CommonFlags f;
+ return &f;
}
+void SetCommonFlagDefaults();
void ParseCommonFlagsFromString(const char *str);
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_internal_defs.h b/lib/sanitizer_common/sanitizer_internal_defs.h
index 9a7d374bf5ad..daa724be06f1 100644
--- a/lib/sanitizer_common/sanitizer_internal_defs.h
+++ b/lib/sanitizer_common/sanitizer_internal_defs.h
@@ -15,9 +15,10 @@
#include "sanitizer_platform.h"
+// Only use SANITIZER_*ATTRIBUTE* before the function return type!
#if SANITIZER_WINDOWS
-// FIXME find out what we need on Windows. __declspec(dllexport) ?
-# define SANITIZER_INTERFACE_ATTRIBUTE
+# define SANITIZER_INTERFACE_ATTRIBUTE __declspec(dllexport)
+// FIXME find out what we need on Windows, if anything.
# define SANITIZER_WEAK_ATTRIBUTE
#elif defined(SANITIZER_GO)
# define SANITIZER_INTERFACE_ATTRIBUTE
@@ -33,6 +34,12 @@
# define SANITIZER_SUPPORTS_WEAK_HOOKS 0
#endif
+#if __LP64__ || defined(_WIN64)
+# define SANITIZER_WORDSIZE 64
+#else
+# define SANITIZER_WORDSIZE 32
+#endif
+
// GCC does not understand __has_feature
#if !defined(__has_feature)
# define __has_feature(x) 0
@@ -78,29 +85,37 @@ typedef u64 OFF_T;
typedef uptr OFF_T;
#endif
typedef u64 OFF64_T;
+
+#if (SANITIZER_WORDSIZE == 64) || SANITIZER_MAC
+typedef uptr operator_new_size_type;
+#else
+typedef u32 operator_new_size_type;
+#endif
} // namespace __sanitizer
extern "C" {
// Tell the tools to write their reports to "path.<pid>" instead of stderr.
- void __sanitizer_set_report_path(const char *path)
- SANITIZER_INTERFACE_ATTRIBUTE;
-
- // Tell the tools to write their reports to given file descriptor instead of
- // stderr.
- void __sanitizer_set_report_fd(int fd)
- SANITIZER_INTERFACE_ATTRIBUTE;
+ // The special values are "stdout" and "stderr".
+ SANITIZER_INTERFACE_ATTRIBUTE
+ void __sanitizer_set_report_path(const char *path);
// Notify the tools that the sandbox is going to be turned on. The reserved
// parameter will be used in the future to hold a structure with functions
// that the tools may call to bypass the sandbox.
- void __sanitizer_sandbox_on_notify(void *reserved)
- SANITIZER_WEAK_ATTRIBUTE SANITIZER_INTERFACE_ATTRIBUTE;
+ SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
+ void __sanitizer_sandbox_on_notify(void *reserved);
// This function is called by the tool when it has just finished reporting
// an error. 'error_summary' is a one-line string that summarizes
// the error message. This function can be overridden by the client.
- void __sanitizer_report_error_summary(const char *error_summary)
- SANITIZER_WEAK_ATTRIBUTE SANITIZER_INTERFACE_ATTRIBUTE;
+ SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
+ void __sanitizer_report_error_summary(const char *error_summary);
+
+ SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_cov_dump();
+ SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_cov(void *pc);
+ SANITIZER_INTERFACE_ATTRIBUTE
+ void __sanitizer_annotate_contiguous_container(void *beg, void *end,
+ void *old_mid, void *new_mid);
} // extern "C"
@@ -132,6 +147,8 @@ using namespace __sanitizer; // NOLINT
#else // _MSC_VER
# define ALWAYS_INLINE inline __attribute__((always_inline))
# define ALIAS(x) __attribute__((alias(x)))
+// Please only use the ALIGNED macro before the type.
+// Using ALIGNED after the variable declaration is not portable!
# define ALIGNED(x) __attribute__((aligned(x)))
# define FORMAT(f, a) __attribute__((format(printf, f, a)))
# define NOINLINE __attribute__((noinline))
@@ -150,6 +167,14 @@ using namespace __sanitizer; // NOLINT
# endif
#endif // _MSC_VER
+// Unaligned versions of basic types.
+typedef ALIGNED(1) u16 uu16;
+typedef ALIGNED(1) u32 uu32;
+typedef ALIGNED(1) u64 uu64;
+typedef ALIGNED(1) s16 us16;
+typedef ALIGNED(1) s32 us32;
+typedef ALIGNED(1) s64 us64;
+
#if SANITIZER_WINDOWS
typedef unsigned long DWORD; // NOLINT
typedef DWORD thread_return_t;
@@ -160,15 +185,12 @@ typedef void* thread_return_t;
#endif // _WIN32
typedef thread_return_t (THREAD_CALLING_CONV *thread_callback_t)(void* arg);
-#if __LP64__ || defined(_WIN64)
-# define SANITIZER_WORDSIZE 64
-#else
-# define SANITIZER_WORDSIZE 32
-#endif
-
// NOTE: Functions below must be defined in each run-time.
namespace __sanitizer {
void NORETURN Die();
+
+// FIXME: No, this shouldn't be in the sanitizer interface.
+SANITIZER_INTERFACE_ATTRIBUTE
void NORETURN CheckFailed(const char *file, int line, const char *cond,
u64 v1, u64 v2);
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_libc.cc b/lib/sanitizer_common/sanitizer_libc.cc
index 20c03c4474a1..72ddf0fd3fbe 100644
--- a/lib/sanitizer_common/sanitizer_libc.cc
+++ b/lib/sanitizer_common/sanitizer_libc.cc
@@ -10,6 +10,7 @@
// This file is shared between AddressSanitizer and ThreadSanitizer
// run-time libraries. See sanitizer_libc.h for details.
//===----------------------------------------------------------------------===//
+#include "sanitizer_allocator_internal.h"
#include "sanitizer_common.h"
#include "sanitizer_libc.h"
@@ -124,6 +125,13 @@ char* internal_strchr(const char *s, int c) {
}
}
+char *internal_strchrnul(const char *s, int c) {
+ char *res = internal_strchr(s, c);
+ if (!res)
+ res = (char*)s + internal_strlen(s);
+ return res;
+}
+
char *internal_strrchr(const char *s, int c) {
const char *res = 0;
for (uptr i = 0; s[i]; i++) {
@@ -151,8 +159,7 @@ char *internal_strncpy(char *dst, const char *src, uptr n) {
uptr i;
for (i = 0; i < n && src[i]; i++)
dst[i] = src[i];
- for (; i < n; i++)
- dst[i] = '\0';
+ internal_memset(dst + i, '\0', n - i);
return dst;
}
diff --git a/lib/sanitizer_common/sanitizer_libc.h b/lib/sanitizer_common/sanitizer_libc.h
index 82d809a0305a..187a714a3b2b 100644
--- a/lib/sanitizer_common/sanitizer_libc.h
+++ b/lib/sanitizer_common/sanitizer_libc.h
@@ -32,6 +32,7 @@ void *internal_memmove(void *dest, const void *src, uptr n);
// Should not be used in performance-critical places.
void *internal_memset(void *s, int c, uptr n);
char* internal_strchr(const char *s, int c);
+char *internal_strchrnul(const char *s, int c);
int internal_strcmp(const char *s1, const char *s2);
uptr internal_strcspn(const char *s, const char *reject);
char *internal_strdup(const char *s);
diff --git a/lib/sanitizer_common/sanitizer_libignore.cc b/lib/sanitizer_common/sanitizer_libignore.cc
new file mode 100644
index 000000000000..0f193a130253
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_libignore.cc
@@ -0,0 +1,105 @@
+//===-- sanitizer_libignore.cc --------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_platform.h"
+#if SANITIZER_LINUX
+
+#include "sanitizer_libignore.h"
+#include "sanitizer_flags.h"
+#include "sanitizer_procmaps.h"
+
+namespace __sanitizer {
+
+LibIgnore::LibIgnore(LinkerInitialized) {
+}
+
+void LibIgnore::Init(const SuppressionContext &supp) {
+ BlockingMutexLock lock(&mutex_);
+ CHECK_EQ(count_, 0);
+ const uptr n = supp.SuppressionCount();
+ for (uptr i = 0; i < n; i++) {
+ const Suppression *s = supp.SuppressionAt(i);
+ if (s->type != SuppressionLib)
+ continue;
+ if (count_ >= kMaxLibs) {
+ Report("%s: too many called_from_lib suppressions (max: %d)\n",
+ SanitizerToolName, kMaxLibs);
+ Die();
+ }
+ Lib *lib = &libs_[count_++];
+ lib->templ = internal_strdup(s->templ);
+ lib->name = 0;
+ lib->loaded = false;
+ }
+}
+
+void LibIgnore::OnLibraryLoaded(const char *name) {
+ BlockingMutexLock lock(&mutex_);
+ // Try to match suppressions with symlink target.
+ InternalScopedBuffer<char> buf(4096);
+ if (name != 0 && internal_readlink(name, buf.data(), buf.size() - 1) > 0 &&
+ buf.data()[0]) {
+ for (uptr i = 0; i < count_; i++) {
+ Lib *lib = &libs_[i];
+ if (!lib->loaded && lib->real_name == 0 &&
+ TemplateMatch(lib->templ, name))
+ lib->real_name = internal_strdup(buf.data());
+ }
+ }
+
+ // Scan suppressions list and find newly loaded and unloaded libraries.
+ MemoryMappingLayout proc_maps(/*cache_enabled*/false);
+ InternalScopedBuffer<char> module(4096);
+ for (uptr i = 0; i < count_; i++) {
+ Lib *lib = &libs_[i];
+ bool loaded = false;
+ proc_maps.Reset();
+ uptr b, e, off, prot;
+ while (proc_maps.Next(&b, &e, &off, module.data(), module.size(), &prot)) {
+ if ((prot & MemoryMappingLayout::kProtectionExecute) == 0)
+ continue;
+ if (TemplateMatch(lib->templ, module.data()) ||
+ (lib->real_name != 0 &&
+ internal_strcmp(lib->real_name, module.data()) == 0)) {
+ if (loaded) {
+ Report("%s: called_from_lib suppression '%s' is matched against"
+ " 2 libraries: '%s' and '%s'\n",
+ SanitizerToolName, lib->templ, lib->name, module.data());
+ Die();
+ }
+ loaded = true;
+ if (lib->loaded)
+ continue;
+ if (common_flags()->verbosity)
+ Report("Matched called_from_lib suppression '%s' against library"
+ " '%s'\n", lib->templ, module.data());
+ lib->loaded = true;
+ lib->name = internal_strdup(module.data());
+ const uptr idx = atomic_load(&loaded_count_, memory_order_relaxed);
+ code_ranges_[idx].begin = b;
+ code_ranges_[idx].end = e;
+ atomic_store(&loaded_count_, idx + 1, memory_order_release);
+ }
+ }
+ if (lib->loaded && !loaded) {
+ Report("%s: library '%s' that was matched against called_from_lib"
+ " suppression '%s' is unloaded\n",
+ SanitizerToolName, lib->name, lib->templ);
+ Die();
+ }
+ }
+}
+
+void LibIgnore::OnLibraryUnloaded() {
+ OnLibraryLoaded(0);
+}
+
+} // namespace __sanitizer
+
+#endif // #if SANITIZER_LINUX
diff --git a/lib/sanitizer_common/sanitizer_libignore.h b/lib/sanitizer_common/sanitizer_libignore.h
new file mode 100644
index 000000000000..8e1d584d8e3c
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_libignore.h
@@ -0,0 +1,84 @@
+//===-- sanitizer_libignore.h -----------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// LibIgnore allows to ignore all interceptors called from a particular set
+// of dynamic libraries. LibIgnore remembers all "called_from_lib" suppressions
+// from the provided SuppressionContext; finds code ranges for the libraries;
+// and checks whether the provided PC value belongs to the code ranges.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SANITIZER_LIBIGNORE_H
+#define SANITIZER_LIBIGNORE_H
+
+#include "sanitizer_internal_defs.h"
+#include "sanitizer_common.h"
+#include "sanitizer_suppressions.h"
+#include "sanitizer_atomic.h"
+#include "sanitizer_mutex.h"
+
+namespace __sanitizer {
+
+class LibIgnore {
+ public:
+ explicit LibIgnore(LinkerInitialized);
+
+ // Fetches all "called_from_lib" suppressions from the SuppressionContext.
+ void Init(const SuppressionContext &supp);
+
+ // Must be called after a new dynamic library is loaded.
+ void OnLibraryLoaded(const char *name);
+
+ // Must be called after a dynamic library is unloaded.
+ void OnLibraryUnloaded();
+
+ // Checks whether the provided PC belongs to one of the ignored libraries.
+ bool IsIgnored(uptr pc) const;
+
+ private:
+ struct Lib {
+ char *templ;
+ char *name;
+ char *real_name; // target of symlink
+ bool loaded;
+ };
+
+ struct LibCodeRange {
+ uptr begin;
+ uptr end;
+ };
+
+ static const uptr kMaxLibs = 128;
+
+ // Hot part:
+ atomic_uintptr_t loaded_count_;
+ LibCodeRange code_ranges_[kMaxLibs];
+
+ // Cold part:
+ BlockingMutex mutex_;
+ uptr count_;
+ Lib libs_[kMaxLibs];
+
+ // Disallow copying of LibIgnore objects.
+ LibIgnore(const LibIgnore&); // not implemented
+ void operator = (const LibIgnore&); // not implemented
+};
+
+inline bool LibIgnore::IsIgnored(uptr pc) const {
+ const uptr n = atomic_load(&loaded_count_, memory_order_acquire);
+ for (uptr i = 0; i < n; i++) {
+ if (pc >= code_ranges_[i].begin && pc < code_ranges_[i].end)
+ return true;
+ }
+ return false;
+}
+
+} // namespace __sanitizer
+
+#endif // SANITIZER_LIBIGNORE_H
diff --git a/lib/sanitizer_common/sanitizer_linux.cc b/lib/sanitizer_common/sanitizer_linux.cc
index 6e234e5f1e1d..b98ad0ab4804 100644
--- a/lib/sanitizer_common/sanitizer_linux.cc
+++ b/lib/sanitizer_common/sanitizer_linux.cc
@@ -29,6 +29,9 @@
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
+#if !SANITIZER_ANDROID
+#include <link.h>
+#endif
#include <pthread.h>
#include <sched.h>
#include <sys/mman.h>
@@ -76,14 +79,15 @@ namespace __sanitizer {
uptr internal_mmap(void *addr, uptr length, int prot, int flags,
int fd, u64 offset) {
#if SANITIZER_LINUX_USES_64BIT_SYSCALLS
- return internal_syscall(__NR_mmap, addr, length, prot, flags, fd, offset);
+ return internal_syscall(__NR_mmap, (uptr)addr, length, prot, flags, fd,
+ offset);
#else
return internal_syscall(__NR_mmap2, addr, length, prot, flags, fd, offset);
#endif
}
uptr internal_munmap(void *addr, uptr length) {
- return internal_syscall(__NR_munmap, addr, length);
+ return internal_syscall(__NR_munmap, (uptr)addr, length);
}
uptr internal_close(fd_t fd) {
@@ -91,11 +95,11 @@ uptr internal_close(fd_t fd) {
}
uptr internal_open(const char *filename, int flags) {
- return internal_syscall(__NR_open, filename, flags);
+ return internal_syscall(__NR_open, (uptr)filename, flags);
}
uptr internal_open(const char *filename, int flags, u32 mode) {
- return internal_syscall(__NR_open, filename, flags, mode);
+ return internal_syscall(__NR_open, (uptr)filename, flags, mode);
}
uptr OpenFile(const char *filename, bool write) {
@@ -105,13 +109,13 @@ uptr OpenFile(const char *filename, bool write) {
uptr internal_read(fd_t fd, void *buf, uptr count) {
sptr res;
- HANDLE_EINTR(res, (sptr)internal_syscall(__NR_read, fd, buf, count));
+ HANDLE_EINTR(res, (sptr)internal_syscall(__NR_read, fd, (uptr)buf, count));
return res;
}
uptr internal_write(fd_t fd, const void *buf, uptr count) {
sptr res;
- HANDLE_EINTR(res, (sptr)internal_syscall(__NR_write, fd, buf, count));
+ HANDLE_EINTR(res, (sptr)internal_syscall(__NR_write, fd, (uptr)buf, count));
return res;
}
@@ -137,7 +141,7 @@ static void stat64_to_stat(struct stat64 *in, struct stat *out) {
uptr internal_stat(const char *path, void *buf) {
#if SANITIZER_LINUX_USES_64BIT_SYSCALLS
- return internal_syscall(__NR_stat, path, buf);
+ return internal_syscall(__NR_stat, (uptr)path, (uptr)buf);
#else
struct stat64 buf64;
int res = internal_syscall(__NR_stat64, path, &buf64);
@@ -148,7 +152,7 @@ uptr internal_stat(const char *path, void *buf) {
uptr internal_lstat(const char *path, void *buf) {
#if SANITIZER_LINUX_USES_64BIT_SYSCALLS
- return internal_syscall(__NR_lstat, path, buf);
+ return internal_syscall(__NR_lstat, (uptr)path, (uptr)buf);
#else
struct stat64 buf64;
int res = internal_syscall(__NR_lstat64, path, &buf64);
@@ -159,7 +163,7 @@ uptr internal_lstat(const char *path, void *buf) {
uptr internal_fstat(fd_t fd, void *buf) {
#if SANITIZER_LINUX_USES_64BIT_SYSCALLS
- return internal_syscall(__NR_fstat, fd, buf);
+ return internal_syscall(__NR_fstat, fd, (uptr)buf);
#else
struct stat64 buf64;
int res = internal_syscall(__NR_fstat64, fd, &buf64);
@@ -180,11 +184,11 @@ uptr internal_dup2(int oldfd, int newfd) {
}
uptr internal_readlink(const char *path, char *buf, uptr bufsize) {
- return internal_syscall(__NR_readlink, path, buf, bufsize);
+ return internal_syscall(__NR_readlink, (uptr)path, (uptr)buf, bufsize);
}
uptr internal_unlink(const char *path) {
- return internal_syscall(__NR_unlink, path);
+ return internal_syscall(__NR_unlink, (uptr)path);
}
uptr internal_sched_yield() {
@@ -198,7 +202,7 @@ void internal__exit(int exitcode) {
uptr internal_execve(const char *filename, char *const argv[],
char *const envp[]) {
- return internal_syscall(__NR_execve, filename, argv, envp);
+ return internal_syscall(__NR_execve, (uptr)filename, (uptr)argv, (uptr)envp);
}
// ----------------- sanitizer_common.h
@@ -216,7 +220,8 @@ uptr GetTid() {
u64 NanoTime() {
kernel_timeval tv;
- internal_syscall(__NR_gettimeofday, &tv, 0);
+ internal_memset(&tv, 0, sizeof(tv));
+ internal_syscall(__NR_gettimeofday, (uptr)&tv, 0);
return (u64)tv.tv_sec * 1000*1000*1000 + tv.tv_usec * 1000;
}
@@ -249,7 +254,7 @@ const char *GetEnv(const char *name) {
}
extern "C" {
- extern void *__libc_stack_end SANITIZER_WEAK_ATTRIBUTE;
+ SANITIZER_WEAK_ATTRIBUTE extern void *__libc_stack_end;
}
#if !SANITIZER_GO
@@ -307,7 +312,10 @@ void PrepareForSandboxing() {
// cached mappings.
MemoryMappingLayout::CacheMemoryMappings();
// Same for /proc/self/exe in the symbolizer.
- SymbolizerPrepareForSandboxing();
+#if !SANITIZER_GO
+ if (Symbolizer *sym = Symbolizer::GetOrNull())
+ sym->PrepareForSandboxing();
+#endif
}
// ----------------- sanitizer_procmaps.h
@@ -400,6 +408,30 @@ static bool IsDecimal(char c) {
return c >= '0' && c <= '9';
}
+static bool IsHex(char c) {
+ return (c >= '0' && c <= '9')
+ || (c >= 'a' && c <= 'f');
+}
+
+static uptr ReadHex(const char *p) {
+ uptr v = 0;
+ for (; IsHex(p[0]); p++) {
+ if (p[0] >= '0' && p[0] <= '9')
+ v = v * 16 + p[0] - '0';
+ else
+ v = v * 16 + p[0] - 'a' + 10;
+ }
+ return v;
+}
+
+static uptr ReadDecimal(const char *p) {
+ uptr v = 0;
+ for (; IsDecimal(p[0]); p++)
+ v = v * 10 + p[0] - '0';
+ return v;
+}
+
+
bool MemoryMappingLayout::Next(uptr *start, uptr *end, uptr *offset,
char filename[], uptr filename_size,
uptr *protection) {
@@ -442,7 +474,9 @@ bool MemoryMappingLayout::Next(uptr *start, uptr *end, uptr *offset,
CHECK_EQ(*current_++, ' ');
while (IsDecimal(*current_))
current_++;
- CHECK_EQ(*current_++, ' ');
+ // Qemu may lack the trailing space.
+ // http://code.google.com/p/address-sanitizer/issues/detail?id=160
+ // CHECK_EQ(*current_++, ' ');
// Skip spaces.
while (current_ < next_line && *current_ == ' ')
current_++;
@@ -468,6 +502,29 @@ bool MemoryMappingLayout::GetObjectNameAndOffset(uptr addr, uptr *offset,
protection);
}
+void GetMemoryProfile(fill_profile_f cb, uptr *stats, uptr stats_size) {
+ char *smaps = 0;
+ uptr smaps_cap = 0;
+ uptr smaps_len = ReadFileToBuffer("/proc/self/smaps",
+ &smaps, &smaps_cap, 64<<20);
+ uptr start = 0;
+ bool file = false;
+ const char *pos = smaps;
+ while (pos < smaps + smaps_len) {
+ if (IsHex(pos[0])) {
+ start = ReadHex(pos);
+ for (; *pos != '/' && *pos > '\n'; pos++) {}
+ file = *pos == '/';
+ } else if (internal_strncmp(pos, "Rss:", 4) == 0) {
+ for (; *pos < '0' || *pos > '9'; pos++) {}
+ uptr rss = ReadDecimal(pos) * 1024;
+ cb(start, rss, file, stats, stats_size);
+ }
+ while (*pos++ != '\n') {}
+ }
+ UnmapOrDie(smaps, smaps_cap);
+}
+
enum MutexState {
MtxUnlocked = 0,
MtxLocked = 1,
@@ -487,7 +544,7 @@ void BlockingMutex::Lock() {
if (atomic_exchange(m, MtxLocked, memory_order_acquire) == MtxUnlocked)
return;
while (atomic_exchange(m, MtxSleeping, memory_order_acquire) != MtxUnlocked)
- internal_syscall(__NR_futex, m, FUTEX_WAIT, MtxSleeping, 0, 0, 0);
+ internal_syscall(__NR_futex, (uptr)m, FUTEX_WAIT, MtxSleeping, 0, 0, 0);
}
void BlockingMutex::Unlock() {
@@ -495,7 +552,7 @@ void BlockingMutex::Unlock() {
u32 v = atomic_exchange(m, MtxUnlocked, memory_order_relaxed);
CHECK_NE(v, MtxUnlocked);
if (v == MtxSleeping)
- internal_syscall(__NR_futex, m, FUTEX_WAKE, 1, 0, 0, 0);
+ internal_syscall(__NR_futex, (uptr)m, FUTEX_WAKE, 1, 0, 0, 0);
}
void BlockingMutex::CheckLocked() {
@@ -516,11 +573,12 @@ struct linux_dirent {
// Syscall wrappers.
uptr internal_ptrace(int request, int pid, void *addr, void *data) {
- return internal_syscall(__NR_ptrace, request, pid, addr, data);
+ return internal_syscall(__NR_ptrace, request, pid, (uptr)addr, (uptr)data);
}
uptr internal_waitpid(int pid, int *status, int options) {
- return internal_syscall(__NR_wait4, pid, status, options, 0 /* rusage */);
+ return internal_syscall(__NR_wait4, pid, (uptr)status, options,
+ 0 /* rusage */);
}
uptr internal_getpid() {
@@ -532,7 +590,7 @@ uptr internal_getppid() {
}
uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count) {
- return internal_syscall(__NR_getdents, fd, dirp, count);
+ return internal_syscall(__NR_getdents, fd, (uptr)dirp, count);
}
uptr internal_lseek(fd_t fd, OFF_T offset, int whence) {
@@ -545,7 +603,32 @@ uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5) {
uptr internal_sigaltstack(const struct sigaltstack *ss,
struct sigaltstack *oss) {
- return internal_syscall(__NR_sigaltstack, ss, oss);
+ return internal_syscall(__NR_sigaltstack, (uptr)ss, (uptr)oss);
+}
+
+uptr internal_sigaction(int signum, const __sanitizer_kernel_sigaction_t *act,
+ __sanitizer_kernel_sigaction_t *oldact) {
+ return internal_syscall(__NR_rt_sigaction, signum, act, oldact,
+ sizeof(__sanitizer_kernel_sigset_t));
+}
+
+uptr internal_sigprocmask(int how, __sanitizer_kernel_sigset_t *set,
+ __sanitizer_kernel_sigset_t *oldset) {
+ return internal_syscall(__NR_rt_sigprocmask, (uptr)how, &set->sig[0],
+ &oldset->sig[0], sizeof(__sanitizer_kernel_sigset_t));
+}
+
+void internal_sigfillset(__sanitizer_kernel_sigset_t *set) {
+ internal_memset(set, 0xff, sizeof(*set));
+}
+
+void internal_sigdelset(__sanitizer_kernel_sigset_t *set, int signum) {
+ signum -= 1;
+ CHECK_GE(signum, 0);
+ CHECK_LT(signum, sizeof(*set) * 8);
+ const uptr idx = signum / (sizeof(set->sig[0]) * 8);
+ const uptr bit = signum % (sizeof(set->sig[0]) * 8);
+ set->sig[idx] &= ~(1 << bit);
}
// ThreadLister implementation.
@@ -624,6 +707,39 @@ uptr GetPageSize() {
#endif
}
+static char proc_self_exe_cache_str[kMaxPathLength];
+static uptr proc_self_exe_cache_len = 0;
+
+uptr ReadBinaryName(/*out*/char *buf, uptr buf_len) {
+ uptr module_name_len = internal_readlink(
+ "/proc/self/exe", buf, buf_len);
+ int readlink_error;
+ if (internal_iserror(module_name_len, &readlink_error)) {
+ if (proc_self_exe_cache_len) {
+ // If available, use the cached module name.
+ CHECK_LE(proc_self_exe_cache_len, buf_len);
+ internal_strncpy(buf, proc_self_exe_cache_str, buf_len);
+ module_name_len = internal_strlen(proc_self_exe_cache_str);
+ } else {
+ // We can't read /proc/self/exe for some reason, assume the name of the
+ // binary is unknown.
+ Report("WARNING: readlink(\"/proc/self/exe\") failed with errno %d, "
+ "some stack frames may not be symbolized\n", readlink_error);
+ module_name_len = internal_snprintf(buf, buf_len, "/proc/self/exe");
+ }
+ CHECK_LT(module_name_len, buf_len);
+ buf[module_name_len] = '\0';
+ }
+ return module_name_len;
+}
+
+void CacheBinaryName() {
+ if (!proc_self_exe_cache_len) {
+ proc_self_exe_cache_len =
+ ReadBinaryName(proc_self_exe_cache_str, kMaxPathLength);
+ }
+}
+
// Match full names of the form /path/to/base_name{-,.}*
bool LibraryNameIs(const char *full_name, const char *base_name) {
const char *name = full_name;
@@ -636,6 +752,107 @@ bool LibraryNameIs(const char *full_name, const char *base_name) {
return (name[base_name_length] == '-' || name[base_name_length] == '.');
}
+#if !SANITIZER_ANDROID
+// Call cb for each region mapped by map.
+void ForEachMappedRegion(link_map *map, void (*cb)(const void *, uptr)) {
+ typedef ElfW(Phdr) Elf_Phdr;
+ typedef ElfW(Ehdr) Elf_Ehdr;
+ char *base = (char *)map->l_addr;
+ Elf_Ehdr *ehdr = (Elf_Ehdr *)base;
+ char *phdrs = base + ehdr->e_phoff;
+ char *phdrs_end = phdrs + ehdr->e_phnum * ehdr->e_phentsize;
+
+ // Find the segment with the minimum base so we can "relocate" the p_vaddr
+ // fields. Typically ET_DYN objects (DSOs) have base of zero and ET_EXEC
+ // objects have a non-zero base.
+ uptr preferred_base = (uptr)-1;
+ for (char *iter = phdrs; iter != phdrs_end; iter += ehdr->e_phentsize) {
+ Elf_Phdr *phdr = (Elf_Phdr *)iter;
+ if (phdr->p_type == PT_LOAD && preferred_base > (uptr)phdr->p_vaddr)
+ preferred_base = (uptr)phdr->p_vaddr;
+ }
+
+ // Compute the delta from the real base to get a relocation delta.
+ sptr delta = (uptr)base - preferred_base;
+ // Now we can figure out what the loader really mapped.
+ for (char *iter = phdrs; iter != phdrs_end; iter += ehdr->e_phentsize) {
+ Elf_Phdr *phdr = (Elf_Phdr *)iter;
+ if (phdr->p_type == PT_LOAD) {
+ uptr seg_start = phdr->p_vaddr + delta;
+ uptr seg_end = seg_start + phdr->p_memsz;
+ // None of these values are aligned. We consider the ragged edges of the
+ // load command as defined, since they are mapped from the file.
+ seg_start = RoundDownTo(seg_start, GetPageSizeCached());
+ seg_end = RoundUpTo(seg_end, GetPageSizeCached());
+ cb((void *)seg_start, seg_end - seg_start);
+ }
+ }
+}
+#endif
+
+#if defined(__x86_64__)
+// We cannot use glibc's clone wrapper, because it messes with the child
+// task's TLS. It writes the PID and TID of the child task to its thread
+// descriptor, but in our case the child task shares the thread descriptor with
+// the parent (because we don't know how to allocate a new thread
+// descriptor to keep glibc happy). So the stock version of clone(), when
+// used with CLONE_VM, would end up corrupting the parent's thread descriptor.
+uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
+ int *parent_tidptr, void *newtls, int *child_tidptr) {
+ long long res;
+ if (!fn || !child_stack)
+ return -EINVAL;
+ CHECK_EQ(0, (uptr)child_stack % 16);
+ child_stack = (char *)child_stack - 2 * sizeof(unsigned long long);
+ ((unsigned long long *)child_stack)[0] = (uptr)fn;
+ ((unsigned long long *)child_stack)[1] = (uptr)arg;
+ register void *r8 __asm__("r8") = newtls;
+ register int *r10 __asm__("r10") = child_tidptr;
+ __asm__ __volatile__(
+ /* %rax = syscall(%rax = __NR_clone,
+ * %rdi = flags,
+ * %rsi = child_stack,
+ * %rdx = parent_tidptr,
+ * %r8 = new_tls,
+ * %r10 = child_tidptr)
+ */
+ "syscall\n"
+
+ /* if (%rax != 0)
+ * return;
+ */
+ "testq %%rax,%%rax\n"
+ "jnz 1f\n"
+
+ /* In the child. Terminate unwind chain. */
+ // XXX: We should also terminate the CFI unwind chain
+ // here. Unfortunately clang 3.2 doesn't support the
+ // necessary CFI directives, so we skip that part.
+ "xorq %%rbp,%%rbp\n"
+
+ /* Call "fn(arg)". */
+ "popq %%rax\n"
+ "popq %%rdi\n"
+ "call *%%rax\n"
+
+ /* Call _exit(%rax). */
+ "movq %%rax,%%rdi\n"
+ "movq %2,%%rax\n"
+ "syscall\n"
+
+ /* Return to parent. */
+ "1:\n"
+ : "=a" (res)
+ : "a"(__NR_clone), "i"(__NR_exit),
+ "S"(child_stack),
+ "D"(flags),
+ "d"(parent_tidptr),
+ "r"(r8),
+ "r"(r10)
+ : "rsp", "memory", "r11", "rcx");
+ return res;
+}
+#endif // defined(__x86_64__)
} // namespace __sanitizer
#endif // SANITIZER_LINUX
diff --git a/lib/sanitizer_common/sanitizer_linux.h b/lib/sanitizer_common/sanitizer_linux.h
index ba68e6c2dd5a..a32e9bf08bad 100644
--- a/lib/sanitizer_common/sanitizer_linux.h
+++ b/lib/sanitizer_common/sanitizer_linux.h
@@ -13,9 +13,13 @@
#ifndef SANITIZER_LINUX_H
#define SANITIZER_LINUX_H
+#include "sanitizer_platform.h"
+#if SANITIZER_LINUX
#include "sanitizer_common.h"
#include "sanitizer_internal_defs.h"
+#include "sanitizer_platform_limits_posix.h"
+struct link_map; // Opaque type returned by dlopen().
struct sigaltstack;
namespace __sanitizer {
@@ -28,6 +32,17 @@ uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count);
uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5);
uptr internal_sigaltstack(const struct sigaltstack* ss,
struct sigaltstack* oss);
+uptr internal_sigaction(int signum, const __sanitizer_kernel_sigaction_t *act,
+ __sanitizer_kernel_sigaction_t *oldact);
+uptr internal_sigprocmask(int how, __sanitizer_kernel_sigset_t *set,
+ __sanitizer_kernel_sigset_t *oldset);
+void internal_sigfillset(__sanitizer_kernel_sigset_t *set);
+void internal_sigdelset(__sanitizer_kernel_sigset_t *set, int signum);
+
+#ifdef __x86_64__
+uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
+ int *parent_tidptr, void *newtls, int *child_tidptr);
+#endif
// This class reads thread IDs from /proc/<pid>/task using only syscalls.
class ThreadLister {
@@ -51,15 +66,25 @@ class ThreadLister {
int bytes_read_;
};
-void AdjustStackSizeLinux(void *attr, int verbosity);
+void AdjustStackSizeLinux(void *attr);
// Exposed for testing.
uptr ThreadDescriptorSize();
+uptr ThreadSelf();
+uptr ThreadSelfOffset();
// Matches a library's file name against a base name (stripping path and version
// information).
bool LibraryNameIs(const char *full_name, const char *base_name);
+// Read the name of the current binary from /proc/self/exe.
+uptr ReadBinaryName(/*out*/char *buf, uptr buf_len);
+// Cache the value of /proc/self/exe.
+void CacheBinaryName();
+
+// Call cb for each region mapped by map.
+void ForEachMappedRegion(link_map *map, void (*cb)(const void *, uptr));
} // namespace __sanitizer
+#endif // SANITIZER_LINUX
#endif // SANITIZER_LINUX_H
diff --git a/lib/sanitizer_common/sanitizer_linux_libcdep.cc b/lib/sanitizer_common/sanitizer_linux_libcdep.cc
index d9e2f5389606..2940686f1275 100644
--- a/lib/sanitizer_common/sanitizer_linux_libcdep.cc
+++ b/lib/sanitizer_common/sanitizer_linux_libcdep.cc
@@ -16,27 +16,28 @@
#if SANITIZER_LINUX
#include "sanitizer_common.h"
+#include "sanitizer_flags.h"
+#include "sanitizer_linux.h"
+#include "sanitizer_placement_new.h"
#include "sanitizer_procmaps.h"
#include "sanitizer_stacktrace.h"
-#ifdef __x86_64__
-#include <asm/prctl.h>
-#endif
#include <dlfcn.h>
#include <pthread.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <unwind.h>
-#ifdef __x86_64__
-extern "C" int arch_prctl(int code, __sanitizer::uptr *addr);
+#if !SANITIZER_ANDROID
+#include <elf.h>
+#include <link.h>
#endif
namespace __sanitizer {
void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top,
uptr *stack_bottom) {
- static const uptr kMaxThreadStackSize = 256 * (1 << 20); // 256M
+ static const uptr kMaxThreadStackSize = 1 << 30; // 1Gb
CHECK(stack_top);
CHECK(stack_bottom);
if (at_initialization) {
@@ -76,9 +77,9 @@ void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top,
pthread_attr_getstack(&attr, &stackaddr, (size_t*)&stacksize);
pthread_attr_destroy(&attr);
+ CHECK_LE(stacksize, kMaxThreadStackSize); // Sanity check.
*stack_top = (uptr)stackaddr + stacksize;
*stack_bottom = (uptr)stackaddr;
- CHECK(stacksize < kMaxThreadStackSize); // Sanity check.
}
// Does not compile for Go because dlsym() requires -ldl
@@ -139,35 +140,33 @@ uptr Unwind_GetIP(struct _Unwind_Context *ctx) {
#endif
}
+struct UnwindTraceArg {
+ StackTrace *stack;
+ uptr max_depth;
+};
+
_Unwind_Reason_Code Unwind_Trace(struct _Unwind_Context *ctx, void *param) {
- StackTrace *b = (StackTrace*)param;
- CHECK(b->size < b->max_size);
+ UnwindTraceArg *arg = (UnwindTraceArg*)param;
+ CHECK_LT(arg->stack->size, arg->max_depth);
uptr pc = Unwind_GetIP(ctx);
- b->trace[b->size++] = pc;
- if (b->size == b->max_size) return UNWIND_STOP;
+ arg->stack->trace[arg->stack->size++] = pc;
+ if (arg->stack->size == arg->max_depth) return UNWIND_STOP;
return UNWIND_CONTINUE;
}
-static bool MatchPc(uptr cur_pc, uptr trace_pc) {
- return cur_pc - trace_pc <= 64 || trace_pc - cur_pc <= 64;
-}
-
void StackTrace::SlowUnwindStack(uptr pc, uptr max_depth) {
- this->size = 0;
- this->max_size = max_depth;
- if (max_depth > 1) {
- _Unwind_Backtrace(Unwind_Trace, this);
- // We need to pop a few frames so that pc is on top.
- // trace[0] belongs to the current function so we always pop it.
- int to_pop = 1;
- /**/ if (size > 1 && MatchPc(pc, trace[1])) to_pop = 1;
- else if (size > 2 && MatchPc(pc, trace[2])) to_pop = 2;
- else if (size > 3 && MatchPc(pc, trace[3])) to_pop = 3;
- else if (size > 4 && MatchPc(pc, trace[4])) to_pop = 4;
- else if (size > 5 && MatchPc(pc, trace[5])) to_pop = 5;
- this->PopStackFrames(to_pop);
- }
- this->trace[0] = pc;
+ size = 0;
+ if (max_depth == 0)
+ return;
+ UnwindTraceArg arg = {this, Min(max_depth + 1, kStackTraceMax)};
+ _Unwind_Backtrace(Unwind_Trace, &arg);
+ // We need to pop a few frames so that pc is on top.
+ uptr to_pop = LocatePcInTrace(pc);
+ // trace[0] belongs to the current function so we always pop it.
+ if (to_pop == 0)
+ to_pop = 1;
+ PopStackFrames(to_pop);
+ trace[0] = pc;
}
#endif // !SANITIZER_GO
@@ -200,20 +199,43 @@ uptr GetTlsSize() {
return g_tls_size;
}
+#if defined(__x86_64__) || defined(__i386__)
// sizeof(struct thread) from glibc.
-#ifdef __x86_64__
-const uptr kThreadDescriptorSize = 2304;
+// There has been a report of this being different on glibc 2.11 and 2.13. We
+// don't know when this change happened, so 2.14 is a conservative estimate.
+#if __GLIBC_PREREQ(2, 14)
+const uptr kThreadDescriptorSize = FIRST_32_SECOND_64(1216, 2304);
+#else
+const uptr kThreadDescriptorSize = FIRST_32_SECOND_64(1168, 2304);
+#endif
uptr ThreadDescriptorSize() {
return kThreadDescriptorSize;
}
+
+// The offset at which pointer to self is located in the thread descriptor.
+const uptr kThreadSelfOffset = FIRST_32_SECOND_64(8, 16);
+
+uptr ThreadSelfOffset() {
+ return kThreadSelfOffset;
+}
+
+uptr ThreadSelf() {
+ uptr descr_addr;
+#ifdef __i386__
+ asm("mov %%gs:%c1,%0" : "=r"(descr_addr) : "i"(kThreadSelfOffset));
+#else
+ asm("mov %%fs:%c1,%0" : "=r"(descr_addr) : "i"(kThreadSelfOffset));
#endif
+ return descr_addr;
+}
+#endif // defined(__x86_64__) || defined(__i386__)
void GetThreadStackAndTls(bool main, uptr *stk_addr, uptr *stk_size,
uptr *tls_addr, uptr *tls_size) {
#ifndef SANITIZER_GO
-#ifdef __x86_64__
- arch_prctl(ARCH_GET_FS, tls_addr);
+#if defined(__x86_64__) || defined(__i386__)
+ *tls_addr = ThreadSelf();
*tls_size = GetTlsSize();
*tls_addr -= *tls_size;
*tls_addr += kThreadDescriptorSize;
@@ -244,7 +266,7 @@ void GetThreadStackAndTls(bool main, uptr *stk_addr, uptr *stk_size,
#endif // SANITIZER_GO
}
-void AdjustStackSizeLinux(void *attr_, int verbosity) {
+void AdjustStackSizeLinux(void *attr_) {
pthread_attr_t *attr = (pthread_attr_t *)attr_;
uptr stackaddr = 0;
size_t stacksize = 0;
@@ -256,7 +278,7 @@ void AdjustStackSizeLinux(void *attr_, int verbosity) {
const uptr minstacksize = GetTlsSize() + 128*1024;
if (stacksize < minstacksize) {
if (!stack_set) {
- if (verbosity && stacksize != 0)
+ if (common_flags()->verbosity && stacksize != 0)
Printf("Sanitizer: increasing stacksize %zu->%zu\n", stacksize,
minstacksize);
pthread_attr_setstacksize(attr, minstacksize);
@@ -268,6 +290,63 @@ void AdjustStackSizeLinux(void *attr_, int verbosity) {
}
}
+#if SANITIZER_ANDROID
+uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
+ string_predicate_t filter) {
+ return 0;
+}
+#else // SANITIZER_ANDROID
+typedef ElfW(Phdr) Elf_Phdr;
+
+struct DlIteratePhdrData {
+ LoadedModule *modules;
+ uptr current_n;
+ bool first;
+ uptr max_n;
+ string_predicate_t filter;
+};
+
+static int dl_iterate_phdr_cb(dl_phdr_info *info, size_t size, void *arg) {
+ DlIteratePhdrData *data = (DlIteratePhdrData*)arg;
+ if (data->current_n == data->max_n)
+ return 0;
+ InternalScopedBuffer<char> module_name(kMaxPathLength);
+ module_name.data()[0] = '\0';
+ if (data->first) {
+ data->first = false;
+ // First module is the binary itself.
+ ReadBinaryName(module_name.data(), module_name.size());
+ } else if (info->dlpi_name) {
+ internal_strncpy(module_name.data(), info->dlpi_name, module_name.size());
+ }
+ if (module_name.data()[0] == '\0')
+ return 0;
+ if (data->filter && !data->filter(module_name.data()))
+ return 0;
+ void *mem = &data->modules[data->current_n];
+ LoadedModule *cur_module = new(mem) LoadedModule(module_name.data(),
+ info->dlpi_addr);
+ data->current_n++;
+ for (int i = 0; i < info->dlpi_phnum; i++) {
+ const Elf_Phdr *phdr = &info->dlpi_phdr[i];
+ if (phdr->p_type == PT_LOAD) {
+ uptr cur_beg = info->dlpi_addr + phdr->p_vaddr;
+ uptr cur_end = cur_beg + phdr->p_memsz;
+ cur_module->addAddressRange(cur_beg, cur_end);
+ }
+ }
+ return 0;
+}
+
+uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
+ string_predicate_t filter) {
+ CHECK(modules);
+ DlIteratePhdrData data = {modules, 0, true, max_modules, filter};
+ dl_iterate_phdr(dl_iterate_phdr_cb, &data);
+ return data.current_n;
+}
+#endif // SANITIZER_ANDROID
+
} // namespace __sanitizer
#endif // SANITIZER_LINUX
diff --git a/lib/sanitizer_common/sanitizer_mac.cc b/lib/sanitizer_common/sanitizer_mac.cc
index f97d1e39c5bf..87ad8b53c6c9 100644
--- a/lib/sanitizer_common/sanitizer_mac.cc
+++ b/lib/sanitizer_common/sanitizer_mac.cc
@@ -25,6 +25,7 @@
#include "sanitizer_common.h"
#include "sanitizer_internal_defs.h"
#include "sanitizer_libc.h"
+#include "sanitizer_placement_new.h"
#include "sanitizer_procmaps.h"
#include <crt_externs.h> // for _NSGetEnviron
@@ -144,7 +145,11 @@ void GetThreadStackTopAndBottom(bool at_initialization, uptr *stack_top,
const char *GetEnv(const char *name) {
char ***env_ptr = _NSGetEnviron();
- CHECK(env_ptr);
+ if (!env_ptr) {
+ Report("_NSGetEnviron() returned NULL. Please make sure __asan_init() is "
+ "called after libSystem_initializer().\n");
+ CHECK(env_ptr);
+ }
char **environ = *env_ptr;
CHECK(environ);
uptr name_len = internal_strlen(name);
@@ -343,6 +348,10 @@ void BlockingMutex::CheckLocked() {
CHECK_EQ((uptr)pthread_self(), owner_);
}
+u64 NanoTime() {
+ return 0;
+}
+
uptr GetTlsSize() {
return 0;
}
@@ -352,12 +361,50 @@ void InitTlsSize() {
void GetThreadStackAndTls(bool main, uptr *stk_addr, uptr *stk_size,
uptr *tls_addr, uptr *tls_size) {
+#ifndef SANITIZER_GO
uptr stack_top, stack_bottom;
GetThreadStackTopAndBottom(main, &stack_top, &stack_bottom);
*stk_addr = stack_bottom;
*stk_size = stack_top - stack_bottom;
*tls_addr = 0;
*tls_size = 0;
+#else
+ *stk_addr = 0;
+ *stk_size = 0;
+ *tls_addr = 0;
+ *tls_size = 0;
+#endif
+}
+
+uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
+ string_predicate_t filter) {
+ MemoryMappingLayout memory_mapping(false);
+ memory_mapping.Reset();
+ uptr cur_beg, cur_end, cur_offset;
+ InternalScopedBuffer<char> module_name(kMaxPathLength);
+ uptr n_modules = 0;
+ for (uptr i = 0;
+ n_modules < max_modules &&
+ memory_mapping.Next(&cur_beg, &cur_end, &cur_offset,
+ module_name.data(), module_name.size(), 0);
+ i++) {
+ const char *cur_name = module_name.data();
+ if (cur_name[0] == '\0')
+ continue;
+ if (filter && !filter(cur_name))
+ continue;
+ LoadedModule *cur_module = 0;
+ if (n_modules > 0 &&
+ 0 == internal_strcmp(cur_name, modules[n_modules - 1].full_name())) {
+ cur_module = &modules[n_modules - 1];
+ } else {
+ void *mem = &modules[n_modules];
+ cur_module = new(mem) LoadedModule(cur_name, cur_beg);
+ n_modules++;
+ }
+ cur_module->addAddressRange(cur_beg, cur_end);
+ }
+ return n_modules;
}
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_mutex.h b/lib/sanitizer_common/sanitizer_mutex.h
index 469981c35176..e812fce90598 100644
--- a/lib/sanitizer_common/sanitizer_mutex.h
+++ b/lib/sanitizer_common/sanitizer_mutex.h
@@ -40,6 +40,10 @@ class StaticSpinMutex {
atomic_store(&state_, 0, memory_order_release);
}
+ void CheckLocked() {
+ CHECK_EQ(atomic_load(&state_, memory_order_relaxed), 1);
+ }
+
private:
atomic_uint8_t state_;
diff --git a/lib/sanitizer_common/sanitizer_placement_new.h b/lib/sanitizer_common/sanitizer_placement_new.h
index a42301aedeac..8904d1040ea7 100644
--- a/lib/sanitizer_common/sanitizer_placement_new.h
+++ b/lib/sanitizer_common/sanitizer_placement_new.h
@@ -18,15 +18,7 @@
#include "sanitizer_internal_defs.h"
-namespace __sanitizer {
-#if (SANITIZER_WORDSIZE == 64) || SANITIZER_MAC
-typedef uptr operator_new_ptr_type;
-#else
-typedef u32 operator_new_ptr_type;
-#endif
-} // namespace __sanitizer
-
-inline void *operator new(__sanitizer::operator_new_ptr_type sz, void *p) {
+inline void *operator new(__sanitizer::operator_new_size_type sz, void *p) {
return p;
}
diff --git a/lib/sanitizer_common/sanitizer_platform.h b/lib/sanitizer_common/sanitizer_platform.h
index acb997180957..fce721e300fb 100644
--- a/lib/sanitizer_common/sanitizer_platform.h
+++ b/lib/sanitizer_common/sanitizer_platform.h
@@ -25,8 +25,15 @@
#if defined(__APPLE__)
# define SANITIZER_MAC 1
+# include <TargetConditionals.h>
+# if TARGET_OS_IPHONE
+# define SANITIZER_IOS 1
+# else
+# define SANITIZER_IOS 0
+# endif
#else
# define SANITIZER_MAC 0
+# define SANITIZER_IOS 0
#endif
#if defined(_WIN32)
diff --git a/lib/sanitizer_common/sanitizer_platform_interceptors.h b/lib/sanitizer_common/sanitizer_platform_interceptors.h
index 60c7145b611a..78d1f5adef7b 100644
--- a/lib/sanitizer_common/sanitizer_platform_interceptors.h
+++ b/lib/sanitizer_common/sanitizer_platform_interceptors.h
@@ -41,6 +41,13 @@
# define SI_MAC 0
#endif
+#if SANITIZER_IOS
+# define SI_IOS 1
+#else
+# define SI_IOS 0
+#endif
+
+# define SANITIZER_INTERCEPT_STRCMP 1
# define SANITIZER_INTERCEPT_STRCASECMP SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_READ SI_NOT_WINDOWS
@@ -48,11 +55,21 @@
# define SANITIZER_INTERCEPT_WRITE SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_PWRITE SI_NOT_WINDOWS
-# define SANITIZER_INTERCEPT_PREAD64 SI_LINUX_NOT_ANDROID
-# define SANITIZER_INTERCEPT_PWRITE64 SI_LINUX_NOT_ANDROID
+#define SANITIZER_INTERCEPT_PREAD64 SI_LINUX_NOT_ANDROID
+#define SANITIZER_INTERCEPT_PWRITE64 SI_LINUX_NOT_ANDROID
+
+#define SANITIZER_INTERCEPT_READV SI_NOT_WINDOWS
+#define SANITIZER_INTERCEPT_WRITEV SI_NOT_WINDOWS
+
+#define SANITIZER_INTERCEPT_PREADV SI_LINUX_NOT_ANDROID
+#define SANITIZER_INTERCEPT_PWRITEV SI_LINUX_NOT_ANDROID
+#define SANITIZER_INTERCEPT_PREADV64 SI_LINUX_NOT_ANDROID
+#define SANITIZER_INTERCEPT_PWRITEV64 SI_LINUX_NOT_ANDROID
+
# define SANITIZER_INTERCEPT_PRCTL SI_LINUX
# define SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_STRPTIME SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_SCANF SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_ISOC99_SCANF SI_LINUX
@@ -71,9 +88,83 @@
# define SANITIZER_INTERCEPT_INET SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_PTHREAD_GETSCHEDPARAM SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_GETADDRINFO SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_GETNAMEINFO SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_GETSOCKNAME SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_GETHOSTBYNAME SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_GETHOSTBYNAME_R SI_LINUX
# define SANITIZER_INTERCEPT_GETSOCKOPT SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_ACCEPT SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_ACCEPT4 SI_LINUX
+# define SANITIZER_INTERCEPT_MODF SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_RECVMSG SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_GETPEERNAME SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_IOCTL SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_INET_ATON SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_SYSINFO SI_LINUX
+# define SANITIZER_INTERCEPT_READDIR SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_READDIR64 SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_PTRACE SI_LINUX_NOT_ANDROID && \
+ (defined(__i386) || defined (__x86_64)) // NOLINT
+# define SANITIZER_INTERCEPT_SETLOCALE SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_GETCWD SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_GET_CURRENT_DIR_NAME SI_LINUX
+# define SANITIZER_INTERCEPT_STRTOIMAX SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_MBSTOWCS SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_MBSNRTOWCS SI_MAC || SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_WCSTOMBS SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_WCSNRTOMBS SI_MAC || SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_TCGETATTR SI_LINUX
+# define SANITIZER_INTERCEPT_REALPATH SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_CANONICALIZE_FILE_NAME SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_CONFSTR SI_MAC || SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_SCHED_GETAFFINITY SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_STRERROR SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_STRERROR_R SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_SCANDIR SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_SCANDIR64 SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_GETGROUPS SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_POLL SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_PPOLL SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_WORDEXP SI_MAC || SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_SIGWAIT SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_SIGWAITINFO SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_SIGTIMEDWAIT SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_SIGSETOPS SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_SIGPENDING SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_SIGPROCMASK SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_BACKTRACE SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_GETMNTENT SI_LINUX
+# define SANITIZER_INTERCEPT_GETMNTENT_R SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_STATFS SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_STATFS64 \
+ (SI_MAC && !SI_IOS) || SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_STATVFS SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_STATVFS64 SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_INITGROUPS SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_ETHER SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_ETHER_R SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_SHMCTL SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_RANDOM_R SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_PTHREAD_ATTR_GET SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSCHED \
+ SI_MAC || SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_PTHREAD_ATTR_GETAFFINITY_NP SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_TMPNAM SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_TMPNAM_R SI_LINUX_NOT_ANDROID
+# define SANITIZER_INTERCEPT_TEMPNAM SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_SINCOS SI_LINUX
+# define SANITIZER_INTERCEPT_REMQUO SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_LGAMMA SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_LGAMMA_R SI_LINUX
+# define SANITIZER_INTERCEPT_DRAND48_R SI_LINUX_NOT_ANDROID
+
+// FIXME: getline seems to be available on OSX 10.7
+# define SANITIZER_INTERCEPT_GETLINE SI_LINUX_NOT_ANDROID
+
+# define SANITIZER_INTERCEPT__EXIT SI_LINUX
+
+# define SANITIZER_INTERCEPT_PHTREAD_MUTEX SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_PTHREAD_COND SI_NOT_WINDOWS
+# define SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP SI_LINUX_NOT_ANDROID
#endif // #ifndef SANITIZER_PLATFORM_INTERCEPTORS_H
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_linux.cc b/lib/sanitizer_common/sanitizer_platform_limits_linux.cc
new file mode 100644
index 000000000000..4c9f12acd3b0
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_platform_limits_linux.cc
@@ -0,0 +1,95 @@
+//===-- sanitizer_platform_limits_linux.cc --------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of Sanitizer common code.
+//
+// Sizes and layouts of linux kernel data structures.
+//===----------------------------------------------------------------------===//
+
+// This is a separate compilation unit for linux headers that conflict with
+// userspace headers.
+// Most "normal" includes go in sanitizer_platform_limits_posix.cc
+
+#include "sanitizer_platform.h"
+#if SANITIZER_LINUX
+
+#include "sanitizer_internal_defs.h"
+#include "sanitizer_platform_limits_posix.h"
+
+// For offsetof -> __builtin_offsetof definition.
+#include <stddef.h>
+
+// With old kernels (and even new kernels on powerpc) asm/stat.h uses types that
+// are not defined anywhere in userspace headers. Fake them. This seems to work
+// fine with newer headers, too.
+#include <asm/posix_types.h>
+#define ino_t __kernel_ino_t
+#define mode_t __kernel_mode_t
+#define nlink_t __kernel_nlink_t
+#define uid_t __kernel_uid_t
+#define gid_t __kernel_gid_t
+#define off_t __kernel_off_t
+// This header seems to contain the definitions of _kernel_ stat* structs.
+#include <asm/stat.h>
+#undef ino_t
+#undef mode_t
+#undef nlink_t
+#undef uid_t
+#undef gid_t
+#undef off_t
+
+#include <linux/aio_abi.h>
+
+#if SANITIZER_ANDROID
+#include <asm/statfs.h>
+#else
+#include <sys/statfs.h>
+#endif
+
+#if !SANITIZER_ANDROID
+#include <linux/perf_event.h>
+#endif
+
+namespace __sanitizer {
+ unsigned struct_statfs64_sz = sizeof(struct statfs64);
+} // namespace __sanitizer
+
+#if !defined(__powerpc64__)
+COMPILER_CHECK(struct___old_kernel_stat_sz == sizeof(struct __old_kernel_stat));
+#endif
+
+COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat));
+
+#if defined(__i386__)
+COMPILER_CHECK(struct_kernel_stat64_sz == sizeof(struct stat64));
+#endif
+
+COMPILER_CHECK(struct_io_event_sz == sizeof(struct io_event));
+
+#if !SANITIZER_ANDROID
+COMPILER_CHECK(sizeof(struct __sanitizer_perf_event_attr) <=
+ sizeof(struct perf_event_attr));
+CHECK_SIZE_AND_OFFSET(perf_event_attr, type);
+CHECK_SIZE_AND_OFFSET(perf_event_attr, size);
+#endif
+
+COMPILER_CHECK(iocb_cmd_pread == IOCB_CMD_PREAD);
+COMPILER_CHECK(iocb_cmd_pwrite == IOCB_CMD_PWRITE);
+
+CHECK_TYPE_SIZE(iocb);
+CHECK_SIZE_AND_OFFSET(iocb, aio_data);
+// Skip aio_key, it's weird.
+CHECK_SIZE_AND_OFFSET(iocb, aio_lio_opcode);
+CHECK_SIZE_AND_OFFSET(iocb, aio_reqprio);
+CHECK_SIZE_AND_OFFSET(iocb, aio_fildes);
+CHECK_SIZE_AND_OFFSET(iocb, aio_buf);
+CHECK_SIZE_AND_OFFSET(iocb, aio_nbytes);
+CHECK_SIZE_AND_OFFSET(iocb, aio_offset);
+
+#endif // SANITIZER_LINUX
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_posix.cc b/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
index c269de65ca2c..e887751d60f0 100644
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
@@ -21,35 +21,109 @@
#include <arpa/inet.h>
#include <dirent.h>
+#include <errno.h>
#include <grp.h>
+#include <limits.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/route.h>
+#include <netdb.h>
+#include <poll.h>
#include <pthread.h>
#include <pwd.h>
#include <signal.h>
#include <stddef.h>
-#include <sys/utsname.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <sys/time.h>
#include <sys/resource.h>
#include <sys/socket.h>
-#include <netdb.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/times.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+#include <termios.h>
#include <time.h>
+#include <wchar.h>
+
+#if SANITIZER_LINUX
+#include <mntent.h>
+#include <netinet/ether.h>
+#include <utime.h>
+#include <sys/mount.h>
+#include <sys/ptrace.h>
+#include <sys/sysinfo.h>
+#include <sys/vt.h>
+#include <linux/cdrom.h>
+#include <linux/fd.h>
+#include <linux/fs.h>
+#include <linux/hdreg.h>
+#include <linux/input.h>
+#include <linux/ioctl.h>
+#include <linux/soundcard.h>
+#include <linux/sysctl.h>
+#include <linux/utsname.h>
+#include <linux/posix_types.h>
+#endif
#if !SANITIZER_ANDROID
#include <sys/ucontext.h>
-#endif // !SANITIZER_ANDROID
+#include <wordexp.h>
+#endif
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+#include <glob.h>
+#include <mqueue.h>
+#include <net/if_ppp.h>
+#include <netax25/ax25.h>
+#include <netipx/ipx.h>
+#include <netrom/netrom.h>
+#include <scsi/scsi.h>
+#include <sys/mtio.h>
+#include <sys/kd.h>
+#include <sys/shm.h>
+#include <sys/statvfs.h>
+#include <sys/timex.h>
+#include <sys/user.h>
+#include <sys/ustat.h>
+#include <linux/cyclades.h>
+#include <linux/if_eql.h>
+#include <linux/if_plip.h>
+#include <linux/lp.h>
+#include <linux/mroute.h>
+#include <linux/mroute6.h>
+#include <linux/scc.h>
+#include <linux/serial.h>
+#include <sys/msg.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#endif // SANITIZER_LINUX && !SANITIZER_ANDROID
+
+#if SANITIZER_ANDROID
+#include <linux/kd.h>
+#include <linux/mtio.h>
+#include <linux/ppp_defs.h>
+#include <linux/if_ppp.h>
+#endif
#if SANITIZER_LINUX
#include <link.h>
#include <sys/vfs.h>
#include <sys/epoll.h>
+#include <linux/capability.h>
#endif // SANITIZER_LINUX
+#if SANITIZER_MAC
+#include <net/ethernet.h>
+#include <sys/filio.h>
+#include <sys/mount.h>
+#include <sys/sockio.h>
+#endif
+
namespace __sanitizer {
unsigned struct_utsname_sz = sizeof(struct utsname);
unsigned struct_stat_sz = sizeof(struct stat);
+#if !SANITIZER_IOS
unsigned struct_stat64_sz = sizeof(struct stat64);
+#endif // !SANITIZER_IOS
unsigned struct_rusage_sz = sizeof(struct rusage);
unsigned struct_tm_sz = sizeof(struct tm);
unsigned struct_passwd_sz = sizeof(struct passwd);
@@ -58,7 +132,21 @@ namespace __sanitizer {
unsigned struct_sigaction_sz = sizeof(struct sigaction);
unsigned struct_itimerval_sz = sizeof(struct itimerval);
unsigned pthread_t_sz = sizeof(pthread_t);
- unsigned struct_sockaddr_sz = sizeof(struct sockaddr);
+ unsigned pthread_cond_t_sz = sizeof(pthread_cond_t);
+ unsigned pid_t_sz = sizeof(pid_t);
+ unsigned timeval_sz = sizeof(timeval);
+ unsigned uid_t_sz = sizeof(uid_t);
+ unsigned mbstate_t_sz = sizeof(mbstate_t);
+ unsigned sigset_t_sz = sizeof(sigset_t);
+ unsigned struct_timezone_sz = sizeof(struct timezone);
+ unsigned struct_tms_sz = sizeof(struct tms);
+ unsigned struct_sigevent_sz = sizeof(struct sigevent);
+ unsigned struct_sched_param_sz = sizeof(struct sched_param);
+ unsigned struct_statfs_sz = sizeof(struct statfs);
+
+#if SANITIZER_MAC && !SANITIZER_IOS
+ unsigned struct_statfs64_sz = sizeof(struct statfs64);
+#endif // SANITIZER_MAC && !SANITIZER_IOS
#if !SANITIZER_ANDROID
unsigned ucontext_t_sz = sizeof(ucontext_t);
@@ -66,51 +154,49 @@ namespace __sanitizer {
#if SANITIZER_LINUX
unsigned struct_rlimit_sz = sizeof(struct rlimit);
- unsigned struct_dirent_sz = sizeof(struct dirent);
- unsigned struct_statfs_sz = sizeof(struct statfs);
unsigned struct_epoll_event_sz = sizeof(struct epoll_event);
+ unsigned struct_sysinfo_sz = sizeof(struct sysinfo);
unsigned struct_timespec_sz = sizeof(struct timespec);
+ unsigned __user_cap_header_struct_sz =
+ sizeof(struct __user_cap_header_struct);
+ unsigned __user_cap_data_struct_sz = sizeof(struct __user_cap_data_struct);
+ unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
+ unsigned struct_new_utsname_sz = sizeof(struct new_utsname);
+ unsigned struct_old_utsname_sz = sizeof(struct old_utsname);
+ unsigned struct_oldold_utsname_sz = sizeof(struct oldold_utsname);
+ unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
+ unsigned struct_ustat_sz = sizeof(struct ustat);
#endif // SANITIZER_LINUX
#if SANITIZER_LINUX && !SANITIZER_ANDROID
- unsigned struct_dirent64_sz = sizeof(struct dirent64);
unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
- unsigned struct_statfs64_sz = sizeof(struct statfs64);
+ unsigned struct_timex_sz = sizeof(struct timex);
+ unsigned struct_msqid_ds_sz = sizeof(struct msqid_ds);
+ unsigned struct_mq_attr_sz = sizeof(struct mq_attr);
+ unsigned struct_statvfs_sz = sizeof(struct statvfs);
+ unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
#endif // SANITIZER_LINUX && !SANITIZER_ANDROID
uptr sig_ign = (uptr)SIG_IGN;
uptr sig_dfl = (uptr)SIG_DFL;
+ uptr sa_siginfo = (uptr)SA_SIGINFO;
- void* __sanitizer_get_msghdr_iov_iov_base(void* msg, int idx) {
- return ((struct msghdr *)msg)->msg_iov[idx].iov_base;
- }
-
- uptr __sanitizer_get_msghdr_iov_iov_len(void* msg, int idx) {
- return ((struct msghdr *)msg)->msg_iov[idx].iov_len;
- }
+#if SANITIZER_LINUX
+ int e_tabsz = (int)E_TABSZ;
+#endif
- uptr __sanitizer_get_msghdr_iovlen(void* msg) {
- return ((struct msghdr *)msg)->msg_iovlen;
- }
- uptr __sanitizer_get_socklen_t(void* socklen_ptr) {
- return *(socklen_t*)socklen_ptr;
- }
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ unsigned struct_shminfo_sz = sizeof(struct shminfo);
+ unsigned struct_shm_info_sz = sizeof(struct shm_info);
+ int shmctl_ipc_stat = (int)IPC_STAT;
+ int shmctl_ipc_info = (int)IPC_INFO;
+ int shmctl_shm_info = (int)SHM_INFO;
+ int shmctl_shm_stat = (int)SHM_INFO;
+#endif
- uptr __sanitizer_get_sigaction_sa_sigaction(void *act) {
- struct sigaction *a = (struct sigaction *)act;
- // Check that sa_sigaction and sa_handler are the same.
- CHECK((void *)&(a->sa_sigaction) == (void *)&(a->sa_handler));
- return (uptr) a->sa_sigaction;
- }
- void __sanitizer_set_sigaction_sa_sigaction(void *act, uptr cb) {
- struct sigaction *a = (struct sigaction *)act;
- a->sa_sigaction = (void (*)(int, siginfo_t *, void *))cb;
- }
- bool __sanitizer_get_sigaction_sa_siginfo(void *act) {
- struct sigaction *a = (struct sigaction *)act;
- return a->sa_flags & SA_SIGINFO;
- }
+ int af_inet = (int)AF_INET;
+ int af_inet6 = (int)AF_INET6;
uptr __sanitizer_in_addr_sz(int af) {
if (af == AF_INET)
@@ -120,36 +206,742 @@ namespace __sanitizer {
else
return 0;
}
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ int glob_nomatch = GLOB_NOMATCH;
+ int glob_altdirfunc = GLOB_ALTDIRFUNC;
+#endif
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID && \
+ (defined(__i386) || defined (__x86_64)) // NOLINT
+ unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
+ unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpregs_struct);
+#ifdef __x86_64
+ unsigned struct_user_fpxregs_struct_sz = 0;
+#else
+ unsigned struct_user_fpxregs_struct_sz = sizeof(struct user_fpxregs_struct);
+#endif
+
+ int ptrace_peektext = PTRACE_PEEKTEXT;
+ int ptrace_peekdata = PTRACE_PEEKDATA;
+ int ptrace_peekuser = PTRACE_PEEKUSER;
+ int ptrace_getregs = PTRACE_GETREGS;
+ int ptrace_setregs = PTRACE_SETREGS;
+ int ptrace_getfpregs = PTRACE_GETFPREGS;
+ int ptrace_setfpregs = PTRACE_SETFPREGS;
+ int ptrace_getfpxregs = PTRACE_GETFPXREGS;
+ int ptrace_setfpxregs = PTRACE_SETFPXREGS;
+ int ptrace_getsiginfo = PTRACE_GETSIGINFO;
+ int ptrace_setsiginfo = PTRACE_SETSIGINFO;
+#if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
+ int ptrace_getregset = PTRACE_GETREGSET;
+ int ptrace_setregset = PTRACE_SETREGSET;
+#else
+ int ptrace_getregset = -1;
+ int ptrace_setregset = -1;
+#endif
+#endif
+
+ unsigned path_max = PATH_MAX;
+
+ // ioctl arguments
+ unsigned struct_arpreq_sz = sizeof(struct arpreq);
+ unsigned struct_ifreq_sz = sizeof(struct ifreq);
+ unsigned struct_termios_sz = sizeof(struct termios);
+ unsigned struct_winsize_sz = sizeof(struct winsize);
+
+#if SANITIZER_LINUX
+ unsigned struct_cdrom_msf_sz = sizeof(struct cdrom_msf);
+ unsigned struct_cdrom_multisession_sz = sizeof(struct cdrom_multisession);
+ unsigned struct_cdrom_read_audio_sz = sizeof(struct cdrom_read_audio);
+ unsigned struct_cdrom_subchnl_sz = sizeof(struct cdrom_subchnl);
+ unsigned struct_cdrom_ti_sz = sizeof(struct cdrom_ti);
+ unsigned struct_cdrom_tocentry_sz = sizeof(struct cdrom_tocentry);
+ unsigned struct_cdrom_tochdr_sz = sizeof(struct cdrom_tochdr);
+ unsigned struct_cdrom_volctrl_sz = sizeof(struct cdrom_volctrl);
+#if SOUND_VERSION >= 0x040000
+ unsigned struct_copr_buffer_sz = 0;
+ unsigned struct_copr_debug_buf_sz = 0;
+ unsigned struct_copr_msg_sz = 0;
+#else
+ unsigned struct_copr_buffer_sz = sizeof(struct copr_buffer);
+ unsigned struct_copr_debug_buf_sz = sizeof(struct copr_debug_buf);
+ unsigned struct_copr_msg_sz = sizeof(struct copr_msg);
+#endif
+ unsigned struct_ff_effect_sz = sizeof(struct ff_effect);
+ unsigned struct_floppy_drive_params_sz = sizeof(struct floppy_drive_params);
+ unsigned struct_floppy_drive_struct_sz = sizeof(struct floppy_drive_struct);
+ unsigned struct_floppy_fdc_state_sz = sizeof(struct floppy_fdc_state);
+ unsigned struct_floppy_max_errors_sz = sizeof(struct floppy_max_errors);
+ unsigned struct_floppy_raw_cmd_sz = sizeof(struct floppy_raw_cmd);
+ unsigned struct_floppy_struct_sz = sizeof(struct floppy_struct);
+ unsigned struct_floppy_write_errors_sz = sizeof(struct floppy_write_errors);
+ unsigned struct_format_descr_sz = sizeof(struct format_descr);
+ unsigned struct_hd_driveid_sz = sizeof(struct hd_driveid);
+ unsigned struct_hd_geometry_sz = sizeof(struct hd_geometry);
+ unsigned struct_input_absinfo_sz = sizeof(struct input_absinfo);
+ unsigned struct_input_id_sz = sizeof(struct input_id);
+ unsigned struct_midi_info_sz = sizeof(struct midi_info);
+ unsigned struct_mtget_sz = sizeof(struct mtget);
+ unsigned struct_mtop_sz = sizeof(struct mtop);
+ unsigned struct_mtpos_sz = sizeof(struct mtpos);
+ unsigned struct_rtentry_sz = sizeof(struct rtentry);
+ unsigned struct_sbi_instrument_sz = sizeof(struct sbi_instrument);
+ unsigned struct_seq_event_rec_sz = sizeof(struct seq_event_rec);
+ unsigned struct_synth_info_sz = sizeof(struct synth_info);
+ unsigned struct_termio_sz = sizeof(struct termio);
+ unsigned struct_vt_consize_sz = sizeof(struct vt_consize);
+ unsigned struct_vt_mode_sz = sizeof(struct vt_mode);
+ unsigned struct_vt_sizes_sz = sizeof(struct vt_sizes);
+ unsigned struct_vt_stat_sz = sizeof(struct vt_stat);
+#endif
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ unsigned struct_audio_buf_info_sz = sizeof(struct audio_buf_info);
+ unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
+ unsigned struct_cyclades_monitor_sz = sizeof(struct cyclades_monitor);
+#if EV_VERSION > (0x010000)
+ unsigned struct_input_keymap_entry_sz = sizeof(struct input_keymap_entry);
+#else
+ unsigned struct_input_keymap_entry_sz = 0;
+#endif
+ unsigned struct_ipx_config_data_sz = sizeof(struct ipx_config_data);
+ unsigned struct_kbdiacrs_sz = sizeof(struct kbdiacrs);
+ unsigned struct_kbentry_sz = sizeof(struct kbentry);
+ unsigned struct_kbkeycode_sz = sizeof(struct kbkeycode);
+ unsigned struct_kbsentry_sz = sizeof(struct kbsentry);
+ unsigned struct_mtconfiginfo_sz = sizeof(struct mtconfiginfo);
+ unsigned struct_nr_parms_struct_sz = sizeof(struct nr_parms_struct);
+ unsigned struct_ppp_stats_sz = sizeof(struct ppp_stats);
+ unsigned struct_scc_modem_sz = sizeof(struct scc_modem);
+ unsigned struct_scc_stat_sz = sizeof(struct scc_stat);
+ unsigned struct_serial_multiport_struct_sz
+ = sizeof(struct serial_multiport_struct);
+ unsigned struct_serial_struct_sz = sizeof(struct serial_struct);
+ unsigned struct_sockaddr_ax25_sz = sizeof(struct sockaddr_ax25);
+ unsigned struct_unimapdesc_sz = sizeof(struct unimapdesc);
+ unsigned struct_unimapinit_sz = sizeof(struct unimapinit);
+#endif
+
+#if !SANITIZER_ANDROID && !SANITIZER_MAC
+ unsigned struct_sioc_sg_req_sz = sizeof(struct sioc_sg_req);
+ unsigned struct_sioc_vif_req_sz = sizeof(struct sioc_vif_req);
+#endif
+
+ unsigned IOCTL_NOT_PRESENT = 0;
+
+ unsigned IOCTL_FIOASYNC = FIOASYNC;
+ unsigned IOCTL_FIOCLEX = FIOCLEX;
+ unsigned IOCTL_FIOGETOWN = FIOGETOWN;
+ unsigned IOCTL_FIONBIO = FIONBIO;
+ unsigned IOCTL_FIONCLEX = FIONCLEX;
+ unsigned IOCTL_FIOSETOWN = FIOSETOWN;
+ unsigned IOCTL_SIOCADDMULTI = SIOCADDMULTI;
+ unsigned IOCTL_SIOCATMARK = SIOCATMARK;
+ unsigned IOCTL_SIOCDELMULTI = SIOCDELMULTI;
+ unsigned IOCTL_SIOCGIFADDR = SIOCGIFADDR;
+ unsigned IOCTL_SIOCGIFBRDADDR = SIOCGIFBRDADDR;
+ unsigned IOCTL_SIOCGIFCONF = SIOCGIFCONF;
+ unsigned IOCTL_SIOCGIFDSTADDR = SIOCGIFDSTADDR;
+ unsigned IOCTL_SIOCGIFFLAGS = SIOCGIFFLAGS;
+ unsigned IOCTL_SIOCGIFMETRIC = SIOCGIFMETRIC;
+ unsigned IOCTL_SIOCGIFMTU = SIOCGIFMTU;
+ unsigned IOCTL_SIOCGIFNETMASK = SIOCGIFNETMASK;
+ unsigned IOCTL_SIOCGPGRP = SIOCGPGRP;
+ unsigned IOCTL_SIOCSIFADDR = SIOCSIFADDR;
+ unsigned IOCTL_SIOCSIFBRDADDR = SIOCSIFBRDADDR;
+ unsigned IOCTL_SIOCSIFDSTADDR = SIOCSIFDSTADDR;
+ unsigned IOCTL_SIOCSIFFLAGS = SIOCSIFFLAGS;
+ unsigned IOCTL_SIOCSIFMETRIC = SIOCSIFMETRIC;
+ unsigned IOCTL_SIOCSIFMTU = SIOCSIFMTU;
+ unsigned IOCTL_SIOCSIFNETMASK = SIOCSIFNETMASK;
+ unsigned IOCTL_SIOCSPGRP = SIOCSPGRP;
+ unsigned IOCTL_TIOCCONS = TIOCCONS;
+ unsigned IOCTL_TIOCEXCL = TIOCEXCL;
+ unsigned IOCTL_TIOCGETD = TIOCGETD;
+ unsigned IOCTL_TIOCGPGRP = TIOCGPGRP;
+ unsigned IOCTL_TIOCGWINSZ = TIOCGWINSZ;
+ unsigned IOCTL_TIOCMBIC = TIOCMBIC;
+ unsigned IOCTL_TIOCMBIS = TIOCMBIS;
+ unsigned IOCTL_TIOCMGET = TIOCMGET;
+ unsigned IOCTL_TIOCMSET = TIOCMSET;
+ unsigned IOCTL_TIOCNOTTY = TIOCNOTTY;
+ unsigned IOCTL_TIOCNXCL = TIOCNXCL;
+ unsigned IOCTL_TIOCOUTQ = TIOCOUTQ;
+ unsigned IOCTL_TIOCPKT = TIOCPKT;
+ unsigned IOCTL_TIOCSCTTY = TIOCSCTTY;
+ unsigned IOCTL_TIOCSETD = TIOCSETD;
+ unsigned IOCTL_TIOCSPGRP = TIOCSPGRP;
+ unsigned IOCTL_TIOCSTI = TIOCSTI;
+ unsigned IOCTL_TIOCSWINSZ = TIOCSWINSZ;
+#if (SANITIZER_LINUX && !SANITIZER_ANDROID)
+ unsigned IOCTL_SIOCGETSGCNT = SIOCGETSGCNT;
+ unsigned IOCTL_SIOCGETVIFCNT = SIOCGETVIFCNT;
+#endif
+#if SANITIZER_LINUX
+ unsigned IOCTL_EVIOCGABS = EVIOCGABS(0);
+ unsigned IOCTL_EVIOCGBIT = EVIOCGBIT(0, 0);
+ unsigned IOCTL_EVIOCGEFFECTS = EVIOCGEFFECTS;
+ unsigned IOCTL_EVIOCGID = EVIOCGID;
+ unsigned IOCTL_EVIOCGKEY = EVIOCGKEY(0);
+ unsigned IOCTL_EVIOCGKEYCODE = EVIOCGKEYCODE;
+ unsigned IOCTL_EVIOCGLED = EVIOCGLED(0);
+ unsigned IOCTL_EVIOCGNAME = EVIOCGNAME(0);
+ unsigned IOCTL_EVIOCGPHYS = EVIOCGPHYS(0);
+ unsigned IOCTL_EVIOCGRAB = EVIOCGRAB;
+ unsigned IOCTL_EVIOCGREP = EVIOCGREP;
+ unsigned IOCTL_EVIOCGSND = EVIOCGSND(0);
+ unsigned IOCTL_EVIOCGSW = EVIOCGSW(0);
+ unsigned IOCTL_EVIOCGUNIQ = EVIOCGUNIQ(0);
+ unsigned IOCTL_EVIOCGVERSION = EVIOCGVERSION;
+ unsigned IOCTL_EVIOCRMFF = EVIOCRMFF;
+ unsigned IOCTL_EVIOCSABS = EVIOCSABS(0);
+ unsigned IOCTL_EVIOCSFF = EVIOCSFF;
+ unsigned IOCTL_EVIOCSKEYCODE = EVIOCSKEYCODE;
+ unsigned IOCTL_EVIOCSREP = EVIOCSREP;
+ unsigned IOCTL_BLKFLSBUF = BLKFLSBUF;
+ unsigned IOCTL_BLKGETSIZE = BLKGETSIZE;
+ unsigned IOCTL_BLKRAGET = BLKRAGET;
+ unsigned IOCTL_BLKRASET = BLKRASET;
+ unsigned IOCTL_BLKROGET = BLKROGET;
+ unsigned IOCTL_BLKROSET = BLKROSET;
+ unsigned IOCTL_BLKRRPART = BLKRRPART;
+ unsigned IOCTL_CDROMAUDIOBUFSIZ = CDROMAUDIOBUFSIZ;
+ unsigned IOCTL_CDROMEJECT = CDROMEJECT;
+ unsigned IOCTL_CDROMEJECT_SW = CDROMEJECT_SW;
+ unsigned IOCTL_CDROMMULTISESSION = CDROMMULTISESSION;
+ unsigned IOCTL_CDROMPAUSE = CDROMPAUSE;
+ unsigned IOCTL_CDROMPLAYMSF = CDROMPLAYMSF;
+ unsigned IOCTL_CDROMPLAYTRKIND = CDROMPLAYTRKIND;
+ unsigned IOCTL_CDROMREADAUDIO = CDROMREADAUDIO;
+ unsigned IOCTL_CDROMREADCOOKED = CDROMREADCOOKED;
+ unsigned IOCTL_CDROMREADMODE1 = CDROMREADMODE1;
+ unsigned IOCTL_CDROMREADMODE2 = CDROMREADMODE2;
+ unsigned IOCTL_CDROMREADRAW = CDROMREADRAW;
+ unsigned IOCTL_CDROMREADTOCENTRY = CDROMREADTOCENTRY;
+ unsigned IOCTL_CDROMREADTOCHDR = CDROMREADTOCHDR;
+ unsigned IOCTL_CDROMRESET = CDROMRESET;
+ unsigned IOCTL_CDROMRESUME = CDROMRESUME;
+ unsigned IOCTL_CDROMSEEK = CDROMSEEK;
+ unsigned IOCTL_CDROMSTART = CDROMSTART;
+ unsigned IOCTL_CDROMSTOP = CDROMSTOP;
+ unsigned IOCTL_CDROMSUBCHNL = CDROMSUBCHNL;
+ unsigned IOCTL_CDROMVOLCTRL = CDROMVOLCTRL;
+ unsigned IOCTL_CDROMVOLREAD = CDROMVOLREAD;
+ unsigned IOCTL_CDROM_GET_UPC = CDROM_GET_UPC;
+ unsigned IOCTL_FDCLRPRM = FDCLRPRM;
+ unsigned IOCTL_FDDEFPRM = FDDEFPRM;
+ unsigned IOCTL_FDFLUSH = FDFLUSH;
+ unsigned IOCTL_FDFMTBEG = FDFMTBEG;
+ unsigned IOCTL_FDFMTEND = FDFMTEND;
+ unsigned IOCTL_FDFMTTRK = FDFMTTRK;
+ unsigned IOCTL_FDGETDRVPRM = FDGETDRVPRM;
+ unsigned IOCTL_FDGETDRVSTAT = FDGETDRVSTAT;
+ unsigned IOCTL_FDGETDRVTYP = FDGETDRVTYP;
+ unsigned IOCTL_FDGETFDCSTAT = FDGETFDCSTAT;
+ unsigned IOCTL_FDGETMAXERRS = FDGETMAXERRS;
+ unsigned IOCTL_FDGETPRM = FDGETPRM;
+ unsigned IOCTL_FDMSGOFF = FDMSGOFF;
+ unsigned IOCTL_FDMSGON = FDMSGON;
+ unsigned IOCTL_FDPOLLDRVSTAT = FDPOLLDRVSTAT;
+ unsigned IOCTL_FDRAWCMD = FDRAWCMD;
+ unsigned IOCTL_FDRESET = FDRESET;
+ unsigned IOCTL_FDSETDRVPRM = FDSETDRVPRM;
+ unsigned IOCTL_FDSETEMSGTRESH = FDSETEMSGTRESH;
+ unsigned IOCTL_FDSETMAXERRS = FDSETMAXERRS;
+ unsigned IOCTL_FDSETPRM = FDSETPRM;
+ unsigned IOCTL_FDTWADDLE = FDTWADDLE;
+ unsigned IOCTL_FDWERRORCLR = FDWERRORCLR;
+ unsigned IOCTL_FDWERRORGET = FDWERRORGET;
+ unsigned IOCTL_HDIO_DRIVE_CMD = HDIO_DRIVE_CMD;
+ unsigned IOCTL_HDIO_GETGEO = HDIO_GETGEO;
+ unsigned IOCTL_HDIO_GET_32BIT = HDIO_GET_32BIT;
+ unsigned IOCTL_HDIO_GET_DMA = HDIO_GET_DMA;
+ unsigned IOCTL_HDIO_GET_IDENTITY = HDIO_GET_IDENTITY;
+ unsigned IOCTL_HDIO_GET_KEEPSETTINGS = HDIO_GET_KEEPSETTINGS;
+ unsigned IOCTL_HDIO_GET_MULTCOUNT = HDIO_GET_MULTCOUNT;
+ unsigned IOCTL_HDIO_GET_NOWERR = HDIO_GET_NOWERR;
+ unsigned IOCTL_HDIO_GET_UNMASKINTR = HDIO_GET_UNMASKINTR;
+ unsigned IOCTL_HDIO_SET_32BIT = HDIO_SET_32BIT;
+ unsigned IOCTL_HDIO_SET_DMA = HDIO_SET_DMA;
+ unsigned IOCTL_HDIO_SET_KEEPSETTINGS = HDIO_SET_KEEPSETTINGS;
+ unsigned IOCTL_HDIO_SET_MULTCOUNT = HDIO_SET_MULTCOUNT;
+ unsigned IOCTL_HDIO_SET_NOWERR = HDIO_SET_NOWERR;
+ unsigned IOCTL_HDIO_SET_UNMASKINTR = HDIO_SET_UNMASKINTR;
+ unsigned IOCTL_MTIOCGET = MTIOCGET;
+ unsigned IOCTL_MTIOCPOS = MTIOCPOS;
+ unsigned IOCTL_MTIOCTOP = MTIOCTOP;
+ unsigned IOCTL_PPPIOCGASYNCMAP = PPPIOCGASYNCMAP;
+ unsigned IOCTL_PPPIOCGDEBUG = PPPIOCGDEBUG;
+ unsigned IOCTL_PPPIOCGFLAGS = PPPIOCGFLAGS;
+ unsigned IOCTL_PPPIOCGUNIT = PPPIOCGUNIT;
+ unsigned IOCTL_PPPIOCGXASYNCMAP = PPPIOCGXASYNCMAP;
+ unsigned IOCTL_PPPIOCSASYNCMAP = PPPIOCSASYNCMAP;
+ unsigned IOCTL_PPPIOCSDEBUG = PPPIOCSDEBUG;
+ unsigned IOCTL_PPPIOCSFLAGS = PPPIOCSFLAGS;
+ unsigned IOCTL_PPPIOCSMAXCID = PPPIOCSMAXCID;
+ unsigned IOCTL_PPPIOCSMRU = PPPIOCSMRU;
+ unsigned IOCTL_PPPIOCSXASYNCMAP = PPPIOCSXASYNCMAP;
+ unsigned IOCTL_SIOCADDRT = SIOCADDRT;
+ unsigned IOCTL_SIOCDARP = SIOCDARP;
+ unsigned IOCTL_SIOCDELRT = SIOCDELRT;
+ unsigned IOCTL_SIOCDRARP = SIOCDRARP;
+ unsigned IOCTL_SIOCGARP = SIOCGARP;
+ unsigned IOCTL_SIOCGIFENCAP = SIOCGIFENCAP;
+ unsigned IOCTL_SIOCGIFHWADDR = SIOCGIFHWADDR;
+ unsigned IOCTL_SIOCGIFMAP = SIOCGIFMAP;
+ unsigned IOCTL_SIOCGIFMEM = SIOCGIFMEM;
+ unsigned IOCTL_SIOCGIFNAME = SIOCGIFNAME;
+ unsigned IOCTL_SIOCGIFSLAVE = SIOCGIFSLAVE;
+ unsigned IOCTL_SIOCGRARP = SIOCGRARP;
+ unsigned IOCTL_SIOCGSTAMP = SIOCGSTAMP;
+ unsigned IOCTL_SIOCSARP = SIOCSARP;
+ unsigned IOCTL_SIOCSIFENCAP = SIOCSIFENCAP;
+ unsigned IOCTL_SIOCSIFHWADDR = SIOCSIFHWADDR;
+ unsigned IOCTL_SIOCSIFLINK = SIOCSIFLINK;
+ unsigned IOCTL_SIOCSIFMAP = SIOCSIFMAP;
+ unsigned IOCTL_SIOCSIFMEM = SIOCSIFMEM;
+ unsigned IOCTL_SIOCSIFSLAVE = SIOCSIFSLAVE;
+ unsigned IOCTL_SIOCSRARP = SIOCSRARP;
+#if SOUND_VERSION >= 0x040000
+ unsigned IOCTL_SNDCTL_COPR_HALT = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SNDCTL_COPR_LOAD = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SNDCTL_COPR_RCODE = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SNDCTL_COPR_RCVMSG = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SNDCTL_COPR_RDATA = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SNDCTL_COPR_RESET = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SNDCTL_COPR_RUN = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SNDCTL_COPR_SENDMSG = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SNDCTL_COPR_WCODE = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SNDCTL_COPR_WDATA = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SOUND_PCM_READ_BITS = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SOUND_PCM_READ_CHANNELS = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SOUND_PCM_READ_FILTER = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SOUND_PCM_READ_RATE = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_SOUND_PCM_WRITE_FILTER = IOCTL_NOT_PRESENT;
+#else
+ unsigned IOCTL_SNDCTL_COPR_HALT = SNDCTL_COPR_HALT;
+ unsigned IOCTL_SNDCTL_COPR_LOAD = SNDCTL_COPR_LOAD;
+ unsigned IOCTL_SNDCTL_COPR_RCODE = SNDCTL_COPR_RCODE;
+ unsigned IOCTL_SNDCTL_COPR_RCVMSG = SNDCTL_COPR_RCVMSG;
+ unsigned IOCTL_SNDCTL_COPR_RDATA = SNDCTL_COPR_RDATA;
+ unsigned IOCTL_SNDCTL_COPR_RESET = SNDCTL_COPR_RESET;
+ unsigned IOCTL_SNDCTL_COPR_RUN = SNDCTL_COPR_RUN;
+ unsigned IOCTL_SNDCTL_COPR_SENDMSG = SNDCTL_COPR_SENDMSG;
+ unsigned IOCTL_SNDCTL_COPR_WCODE = SNDCTL_COPR_WCODE;
+ unsigned IOCTL_SNDCTL_COPR_WDATA = SNDCTL_COPR_WDATA;
+ unsigned IOCTL_SOUND_PCM_READ_BITS = SOUND_PCM_READ_BITS;
+ unsigned IOCTL_SOUND_PCM_READ_CHANNELS = SOUND_PCM_READ_CHANNELS;
+ unsigned IOCTL_SOUND_PCM_READ_FILTER = SOUND_PCM_READ_FILTER;
+ unsigned IOCTL_SOUND_PCM_READ_RATE = SOUND_PCM_READ_RATE;
+ unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = SOUND_PCM_WRITE_CHANNELS;
+ unsigned IOCTL_SOUND_PCM_WRITE_FILTER = SOUND_PCM_WRITE_FILTER;
+#endif
+ unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE = SNDCTL_DSP_GETBLKSIZE;
+ unsigned IOCTL_SNDCTL_DSP_GETFMTS = SNDCTL_DSP_GETFMTS;
+ unsigned IOCTL_SNDCTL_DSP_NONBLOCK = SNDCTL_DSP_NONBLOCK;
+ unsigned IOCTL_SNDCTL_DSP_POST = SNDCTL_DSP_POST;
+ unsigned IOCTL_SNDCTL_DSP_RESET = SNDCTL_DSP_RESET;
+ unsigned IOCTL_SNDCTL_DSP_SETFMT = SNDCTL_DSP_SETFMT;
+ unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT = SNDCTL_DSP_SETFRAGMENT;
+ unsigned IOCTL_SNDCTL_DSP_SPEED = SNDCTL_DSP_SPEED;
+ unsigned IOCTL_SNDCTL_DSP_STEREO = SNDCTL_DSP_STEREO;
+ unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE = SNDCTL_DSP_SUBDIVIDE;
+ unsigned IOCTL_SNDCTL_DSP_SYNC = SNDCTL_DSP_SYNC;
+ unsigned IOCTL_SNDCTL_FM_4OP_ENABLE = SNDCTL_FM_4OP_ENABLE;
+ unsigned IOCTL_SNDCTL_FM_LOAD_INSTR = SNDCTL_FM_LOAD_INSTR;
+ unsigned IOCTL_SNDCTL_MIDI_INFO = SNDCTL_MIDI_INFO;
+ unsigned IOCTL_SNDCTL_MIDI_PRETIME = SNDCTL_MIDI_PRETIME;
+ unsigned IOCTL_SNDCTL_SEQ_CTRLRATE = SNDCTL_SEQ_CTRLRATE;
+ unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT = SNDCTL_SEQ_GETINCOUNT;
+ unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT = SNDCTL_SEQ_GETOUTCOUNT;
+ unsigned IOCTL_SNDCTL_SEQ_NRMIDIS = SNDCTL_SEQ_NRMIDIS;
+ unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS = SNDCTL_SEQ_NRSYNTHS;
+ unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND = SNDCTL_SEQ_OUTOFBAND;
+ unsigned IOCTL_SNDCTL_SEQ_PANIC = SNDCTL_SEQ_PANIC;
+ unsigned IOCTL_SNDCTL_SEQ_PERCMODE = SNDCTL_SEQ_PERCMODE;
+ unsigned IOCTL_SNDCTL_SEQ_RESET = SNDCTL_SEQ_RESET;
+ unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES = SNDCTL_SEQ_RESETSAMPLES;
+ unsigned IOCTL_SNDCTL_SEQ_SYNC = SNDCTL_SEQ_SYNC;
+ unsigned IOCTL_SNDCTL_SEQ_TESTMIDI = SNDCTL_SEQ_TESTMIDI;
+ unsigned IOCTL_SNDCTL_SEQ_THRESHOLD = SNDCTL_SEQ_THRESHOLD;
+ unsigned IOCTL_SNDCTL_SYNTH_INFO = SNDCTL_SYNTH_INFO;
+ unsigned IOCTL_SNDCTL_SYNTH_MEMAVL = SNDCTL_SYNTH_MEMAVL;
+ unsigned IOCTL_SNDCTL_TMR_CONTINUE = SNDCTL_TMR_CONTINUE;
+ unsigned IOCTL_SNDCTL_TMR_METRONOME = SNDCTL_TMR_METRONOME;
+ unsigned IOCTL_SNDCTL_TMR_SELECT = SNDCTL_TMR_SELECT;
+ unsigned IOCTL_SNDCTL_TMR_SOURCE = SNDCTL_TMR_SOURCE;
+ unsigned IOCTL_SNDCTL_TMR_START = SNDCTL_TMR_START;
+ unsigned IOCTL_SNDCTL_TMR_STOP = SNDCTL_TMR_STOP;
+ unsigned IOCTL_SNDCTL_TMR_TEMPO = SNDCTL_TMR_TEMPO;
+ unsigned IOCTL_SNDCTL_TMR_TIMEBASE = SNDCTL_TMR_TIMEBASE;
+ unsigned IOCTL_SOUND_MIXER_READ_ALTPCM = SOUND_MIXER_READ_ALTPCM;
+ unsigned IOCTL_SOUND_MIXER_READ_BASS = SOUND_MIXER_READ_BASS;
+ unsigned IOCTL_SOUND_MIXER_READ_CAPS = SOUND_MIXER_READ_CAPS;
+ unsigned IOCTL_SOUND_MIXER_READ_CD = SOUND_MIXER_READ_CD;
+ unsigned IOCTL_SOUND_MIXER_READ_DEVMASK = SOUND_MIXER_READ_DEVMASK;
+ unsigned IOCTL_SOUND_MIXER_READ_ENHANCE = SOUND_MIXER_READ_ENHANCE;
+ unsigned IOCTL_SOUND_MIXER_READ_IGAIN = SOUND_MIXER_READ_IGAIN;
+ unsigned IOCTL_SOUND_MIXER_READ_IMIX = SOUND_MIXER_READ_IMIX;
+ unsigned IOCTL_SOUND_MIXER_READ_LINE = SOUND_MIXER_READ_LINE;
+ unsigned IOCTL_SOUND_MIXER_READ_LINE1 = SOUND_MIXER_READ_LINE1;
+ unsigned IOCTL_SOUND_MIXER_READ_LINE2 = SOUND_MIXER_READ_LINE2;
+ unsigned IOCTL_SOUND_MIXER_READ_LINE3 = SOUND_MIXER_READ_LINE3;
+ unsigned IOCTL_SOUND_MIXER_READ_LOUD = SOUND_MIXER_READ_LOUD;
+ unsigned IOCTL_SOUND_MIXER_READ_MIC = SOUND_MIXER_READ_MIC;
+ unsigned IOCTL_SOUND_MIXER_READ_MUTE = SOUND_MIXER_READ_MUTE;
+ unsigned IOCTL_SOUND_MIXER_READ_OGAIN = SOUND_MIXER_READ_OGAIN;
+ unsigned IOCTL_SOUND_MIXER_READ_PCM = SOUND_MIXER_READ_PCM;
+ unsigned IOCTL_SOUND_MIXER_READ_RECLEV = SOUND_MIXER_READ_RECLEV;
+ unsigned IOCTL_SOUND_MIXER_READ_RECMASK = SOUND_MIXER_READ_RECMASK;
+ unsigned IOCTL_SOUND_MIXER_READ_RECSRC = SOUND_MIXER_READ_RECSRC;
+ unsigned IOCTL_SOUND_MIXER_READ_SPEAKER = SOUND_MIXER_READ_SPEAKER;
+ unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS = SOUND_MIXER_READ_STEREODEVS;
+ unsigned IOCTL_SOUND_MIXER_READ_SYNTH = SOUND_MIXER_READ_SYNTH;
+ unsigned IOCTL_SOUND_MIXER_READ_TREBLE = SOUND_MIXER_READ_TREBLE;
+ unsigned IOCTL_SOUND_MIXER_READ_VOLUME = SOUND_MIXER_READ_VOLUME;
+ unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM = SOUND_MIXER_WRITE_ALTPCM;
+ unsigned IOCTL_SOUND_MIXER_WRITE_BASS = SOUND_MIXER_WRITE_BASS;
+ unsigned IOCTL_SOUND_MIXER_WRITE_CD = SOUND_MIXER_WRITE_CD;
+ unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE = SOUND_MIXER_WRITE_ENHANCE;
+ unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN = SOUND_MIXER_WRITE_IGAIN;
+ unsigned IOCTL_SOUND_MIXER_WRITE_IMIX = SOUND_MIXER_WRITE_IMIX;
+ unsigned IOCTL_SOUND_MIXER_WRITE_LINE = SOUND_MIXER_WRITE_LINE;
+ unsigned IOCTL_SOUND_MIXER_WRITE_LINE1 = SOUND_MIXER_WRITE_LINE1;
+ unsigned IOCTL_SOUND_MIXER_WRITE_LINE2 = SOUND_MIXER_WRITE_LINE2;
+ unsigned IOCTL_SOUND_MIXER_WRITE_LINE3 = SOUND_MIXER_WRITE_LINE3;
+ unsigned IOCTL_SOUND_MIXER_WRITE_LOUD = SOUND_MIXER_WRITE_LOUD;
+ unsigned IOCTL_SOUND_MIXER_WRITE_MIC = SOUND_MIXER_WRITE_MIC;
+ unsigned IOCTL_SOUND_MIXER_WRITE_MUTE = SOUND_MIXER_WRITE_MUTE;
+ unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN = SOUND_MIXER_WRITE_OGAIN;
+ unsigned IOCTL_SOUND_MIXER_WRITE_PCM = SOUND_MIXER_WRITE_PCM;
+ unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV = SOUND_MIXER_WRITE_RECLEV;
+ unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC = SOUND_MIXER_WRITE_RECSRC;
+ unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER = SOUND_MIXER_WRITE_SPEAKER;
+ unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH = SOUND_MIXER_WRITE_SYNTH;
+ unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE = SOUND_MIXER_WRITE_TREBLE;
+ unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME = SOUND_MIXER_WRITE_VOLUME;
+ unsigned IOCTL_TCFLSH = TCFLSH;
+ unsigned IOCTL_TCGETA = TCGETA;
+ unsigned IOCTL_TCGETS = TCGETS;
+ unsigned IOCTL_TCSBRK = TCSBRK;
+ unsigned IOCTL_TCSBRKP = TCSBRKP;
+ unsigned IOCTL_TCSETA = TCSETA;
+ unsigned IOCTL_TCSETAF = TCSETAF;
+ unsigned IOCTL_TCSETAW = TCSETAW;
+ unsigned IOCTL_TCSETS = TCSETS;
+ unsigned IOCTL_TCSETSF = TCSETSF;
+ unsigned IOCTL_TCSETSW = TCSETSW;
+ unsigned IOCTL_TCXONC = TCXONC;
+ unsigned IOCTL_TIOCGLCKTRMIOS = TIOCGLCKTRMIOS;
+ unsigned IOCTL_TIOCGSOFTCAR = TIOCGSOFTCAR;
+ unsigned IOCTL_TIOCINQ = TIOCINQ;
+ unsigned IOCTL_TIOCLINUX = TIOCLINUX;
+ unsigned IOCTL_TIOCSERCONFIG = TIOCSERCONFIG;
+ unsigned IOCTL_TIOCSERGETLSR = TIOCSERGETLSR;
+ unsigned IOCTL_TIOCSERGWILD = TIOCSERGWILD;
+ unsigned IOCTL_TIOCSERSWILD = TIOCSERSWILD;
+ unsigned IOCTL_TIOCSLCKTRMIOS = TIOCSLCKTRMIOS;
+ unsigned IOCTL_TIOCSSOFTCAR = TIOCSSOFTCAR;
+ unsigned IOCTL_VT_ACTIVATE = VT_ACTIVATE;
+ unsigned IOCTL_VT_DISALLOCATE = VT_DISALLOCATE;
+ unsigned IOCTL_VT_GETMODE = VT_GETMODE;
+ unsigned IOCTL_VT_GETSTATE = VT_GETSTATE;
+ unsigned IOCTL_VT_OPENQRY = VT_OPENQRY;
+ unsigned IOCTL_VT_RELDISP = VT_RELDISP;
+ unsigned IOCTL_VT_RESIZE = VT_RESIZE;
+ unsigned IOCTL_VT_RESIZEX = VT_RESIZEX;
+ unsigned IOCTL_VT_SENDSIG = VT_SENDSIG;
+ unsigned IOCTL_VT_SETMODE = VT_SETMODE;
+ unsigned IOCTL_VT_WAITACTIVE = VT_WAITACTIVE;
+#endif
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ unsigned IOCTL_CYGETDEFTHRESH = CYGETDEFTHRESH;
+ unsigned IOCTL_CYGETDEFTIMEOUT = CYGETDEFTIMEOUT;
+ unsigned IOCTL_CYGETMON = CYGETMON;
+ unsigned IOCTL_CYGETTHRESH = CYGETTHRESH;
+ unsigned IOCTL_CYGETTIMEOUT = CYGETTIMEOUT;
+ unsigned IOCTL_CYSETDEFTHRESH = CYSETDEFTHRESH;
+ unsigned IOCTL_CYSETDEFTIMEOUT = CYSETDEFTIMEOUT;
+ unsigned IOCTL_CYSETTHRESH = CYSETTHRESH;
+ unsigned IOCTL_CYSETTIMEOUT = CYSETTIMEOUT;
+ unsigned IOCTL_EQL_EMANCIPATE = EQL_EMANCIPATE;
+ unsigned IOCTL_EQL_ENSLAVE = EQL_ENSLAVE;
+ unsigned IOCTL_EQL_GETMASTRCFG = EQL_GETMASTRCFG;
+ unsigned IOCTL_EQL_GETSLAVECFG = EQL_GETSLAVECFG;
+ unsigned IOCTL_EQL_SETMASTRCFG = EQL_SETMASTRCFG;
+ unsigned IOCTL_EQL_SETSLAVECFG = EQL_SETSLAVECFG;
+#if EV_VERSION > (0x010000)
+ unsigned IOCTL_EVIOCGKEYCODE_V2 = EVIOCGKEYCODE_V2;
+ unsigned IOCTL_EVIOCGPROP = EVIOCGPROP(0);
+ unsigned IOCTL_EVIOCSKEYCODE_V2 = EVIOCSKEYCODE_V2;
+#else
+ unsigned IOCTL_EVIOCGKEYCODE_V2 = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT;
+ unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT;
+#endif
+ unsigned IOCTL_FS_IOC_GETFLAGS = FS_IOC_GETFLAGS;
+ unsigned IOCTL_FS_IOC_GETVERSION = FS_IOC_GETVERSION;
+ unsigned IOCTL_FS_IOC_SETFLAGS = FS_IOC_SETFLAGS;
+ unsigned IOCTL_FS_IOC_SETVERSION = FS_IOC_SETVERSION;
+ unsigned IOCTL_GIO_CMAP = GIO_CMAP;
+ unsigned IOCTL_GIO_FONT = GIO_FONT;
+ unsigned IOCTL_GIO_SCRNMAP = GIO_SCRNMAP;
+ unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;
+ unsigned IOCTL_GIO_UNISCRNMAP = GIO_UNISCRNMAP;
+ unsigned IOCTL_KDADDIO = KDADDIO;
+ unsigned IOCTL_KDDELIO = KDDELIO;
+ unsigned IOCTL_KDDISABIO = KDDISABIO;
+ unsigned IOCTL_KDENABIO = KDENABIO;
+ unsigned IOCTL_KDGETKEYCODE = KDGETKEYCODE;
+ unsigned IOCTL_KDGETLED = KDGETLED;
+ unsigned IOCTL_KDGETMODE = KDGETMODE;
+ unsigned IOCTL_KDGKBDIACR = KDGKBDIACR;
+ unsigned IOCTL_KDGKBENT = KDGKBENT;
+ unsigned IOCTL_KDGKBLED = KDGKBLED;
+ unsigned IOCTL_KDGKBMETA = KDGKBMETA;
+ unsigned IOCTL_KDGKBMODE = KDGKBMODE;
+ unsigned IOCTL_KDGKBSENT = KDGKBSENT;
+ unsigned IOCTL_KDGKBTYPE = KDGKBTYPE;
+ unsigned IOCTL_KDMAPDISP = KDMAPDISP;
+ unsigned IOCTL_KDMKTONE = KDMKTONE;
+ unsigned IOCTL_KDSETKEYCODE = KDSETKEYCODE;
+ unsigned IOCTL_KDSETLED = KDSETLED;
+ unsigned IOCTL_KDSETMODE = KDSETMODE;
+ unsigned IOCTL_KDSIGACCEPT = KDSIGACCEPT;
+ unsigned IOCTL_KDSKBDIACR = KDSKBDIACR;
+ unsigned IOCTL_KDSKBENT = KDSKBENT;
+ unsigned IOCTL_KDSKBLED = KDSKBLED;
+ unsigned IOCTL_KDSKBMETA = KDSKBMETA;
+ unsigned IOCTL_KDSKBMODE = KDSKBMODE;
+ unsigned IOCTL_KDSKBSENT = KDSKBSENT;
+ unsigned IOCTL_KDUNMAPDISP = KDUNMAPDISP;
+ unsigned IOCTL_KIOCSOUND = KIOCSOUND;
+ unsigned IOCTL_LPABORT = LPABORT;
+ unsigned IOCTL_LPABORTOPEN = LPABORTOPEN;
+ unsigned IOCTL_LPCAREFUL = LPCAREFUL;
+ unsigned IOCTL_LPCHAR = LPCHAR;
+ unsigned IOCTL_LPGETIRQ = LPGETIRQ;
+ unsigned IOCTL_LPGETSTATUS = LPGETSTATUS;
+ unsigned IOCTL_LPRESET = LPRESET;
+ unsigned IOCTL_LPSETIRQ = LPSETIRQ;
+ unsigned IOCTL_LPTIME = LPTIME;
+ unsigned IOCTL_LPWAIT = LPWAIT;
+ unsigned IOCTL_MTIOCGETCONFIG = MTIOCGETCONFIG;
+ unsigned IOCTL_MTIOCSETCONFIG = MTIOCSETCONFIG;
+ unsigned IOCTL_PIO_CMAP = PIO_CMAP;
+ unsigned IOCTL_PIO_FONT = PIO_FONT;
+ unsigned IOCTL_PIO_SCRNMAP = PIO_SCRNMAP;
+ unsigned IOCTL_PIO_UNIMAP = PIO_UNIMAP;
+ unsigned IOCTL_PIO_UNIMAPCLR = PIO_UNIMAPCLR;
+ unsigned IOCTL_PIO_UNISCRNMAP = PIO_UNISCRNMAP;
+ unsigned IOCTL_SCSI_IOCTL_GET_IDLUN = SCSI_IOCTL_GET_IDLUN;
+ unsigned IOCTL_SCSI_IOCTL_PROBE_HOST = SCSI_IOCTL_PROBE_HOST;
+ unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE = SCSI_IOCTL_TAGGED_DISABLE;
+ unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE = SCSI_IOCTL_TAGGED_ENABLE;
+ unsigned IOCTL_SIOCAIPXITFCRT = SIOCAIPXITFCRT;
+ unsigned IOCTL_SIOCAIPXPRISLT = SIOCAIPXPRISLT;
+ unsigned IOCTL_SIOCAX25ADDUID = SIOCAX25ADDUID;
+ unsigned IOCTL_SIOCAX25DELUID = SIOCAX25DELUID;
+ unsigned IOCTL_SIOCAX25GETPARMS = SIOCAX25GETPARMS;
+ unsigned IOCTL_SIOCAX25GETUID = SIOCAX25GETUID;
+ unsigned IOCTL_SIOCAX25NOUID = SIOCAX25NOUID;
+ unsigned IOCTL_SIOCAX25SETPARMS = SIOCAX25SETPARMS;
+ unsigned IOCTL_SIOCDEVPLIP = SIOCDEVPLIP;
+ unsigned IOCTL_SIOCIPXCFGDATA = SIOCIPXCFGDATA;
+ unsigned IOCTL_SIOCNRDECOBS = SIOCNRDECOBS;
+ unsigned IOCTL_SIOCNRGETPARMS = SIOCNRGETPARMS;
+ unsigned IOCTL_SIOCNRRTCTL = SIOCNRRTCTL;
+ unsigned IOCTL_SIOCNRSETPARMS = SIOCNRSETPARMS;
+ unsigned IOCTL_SNDCTL_DSP_GETISPACE = SNDCTL_DSP_GETISPACE;
+ unsigned IOCTL_SNDCTL_DSP_GETOSPACE = SNDCTL_DSP_GETOSPACE;
+ unsigned IOCTL_TIOCGSERIAL = TIOCGSERIAL;
+ unsigned IOCTL_TIOCSERGETMULTI = TIOCSERGETMULTI;
+ unsigned IOCTL_TIOCSERSETMULTI = TIOCSERSETMULTI;
+ unsigned IOCTL_TIOCSSERIAL = TIOCSSERIAL;
+#endif
+
+// EOWNERDEAD is not present in some older platforms.
+#if defined(EOWNERDEAD)
+ extern const int errno_EOWNERDEAD = EOWNERDEAD;
+#else
+ extern const int errno_EOWNERDEAD = -1;
+#endif
} // namespace __sanitizer
COMPILER_CHECK(sizeof(__sanitizer_pthread_attr_t) >= sizeof(pthread_attr_t));
-COMPILER_CHECK(sizeof(__sanitizer::struct_sigaction_max_sz) >=
- sizeof(__sanitizer::struct_sigaction_sz));
+
+COMPILER_CHECK(sizeof(socklen_t) == sizeof(unsigned));
+CHECK_TYPE_SIZE(pthread_key_t);
+
#if SANITIZER_LINUX
-COMPILER_CHECK(offsetof(struct __sanitizer_dl_phdr_info, dlpi_addr) ==
- offsetof(struct dl_phdr_info, dlpi_addr));
-COMPILER_CHECK(offsetof(struct __sanitizer_dl_phdr_info, dlpi_name) ==
- offsetof(struct dl_phdr_info, dlpi_name));
-COMPILER_CHECK(offsetof(struct __sanitizer_dl_phdr_info, dlpi_phdr) ==
- offsetof(struct dl_phdr_info, dlpi_phdr));
-COMPILER_CHECK(offsetof(struct __sanitizer_dl_phdr_info, dlpi_phnum) ==
- offsetof(struct dl_phdr_info, dlpi_phnum));
-#endif
-
-COMPILER_CHECK(sizeof(struct __sanitizer_addrinfo) == sizeof(struct addrinfo));
-COMPILER_CHECK(offsetof(struct __sanitizer_addrinfo, ai_addr) ==
- offsetof(struct addrinfo, ai_addr));
-COMPILER_CHECK(offsetof(struct __sanitizer_addrinfo, ai_canonname) ==
- offsetof(struct addrinfo, ai_canonname));
-COMPILER_CHECK(offsetof(struct __sanitizer_addrinfo, ai_next) ==
- offsetof(struct addrinfo, ai_next));
-
-COMPILER_CHECK(sizeof(struct __sanitizer_hostent) == sizeof(struct hostent));
-COMPILER_CHECK(offsetof(struct __sanitizer_hostent, h_name) ==
- offsetof(struct hostent, h_name));
-COMPILER_CHECK(offsetof(struct __sanitizer_hostent, h_aliases) ==
- offsetof(struct hostent, h_aliases));
-COMPILER_CHECK(offsetof(struct __sanitizer_hostent, h_addr_list) ==
- offsetof(struct hostent, h_addr_list));
+// There are more undocumented fields in dl_phdr_info that we are not interested
+// in.
+COMPILER_CHECK(sizeof(__sanitizer_dl_phdr_info) <= sizeof(dl_phdr_info));
+CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_addr);
+CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_name);
+CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phdr);
+CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
+
+COMPILER_CHECK(IOC_SIZE(0x12345678) == _IOC_SIZE(0x12345678));
+#endif
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+CHECK_TYPE_SIZE(glob_t);
+CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
+CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
+CHECK_SIZE_AND_OFFSET(glob_t, gl_offs);
+CHECK_SIZE_AND_OFFSET(glob_t, gl_flags);
+CHECK_SIZE_AND_OFFSET(glob_t, gl_closedir);
+CHECK_SIZE_AND_OFFSET(glob_t, gl_readdir);
+CHECK_SIZE_AND_OFFSET(glob_t, gl_opendir);
+CHECK_SIZE_AND_OFFSET(glob_t, gl_lstat);
+CHECK_SIZE_AND_OFFSET(glob_t, gl_stat);
+#endif
+
+CHECK_TYPE_SIZE(addrinfo);
+CHECK_SIZE_AND_OFFSET(addrinfo, ai_flags);
+CHECK_SIZE_AND_OFFSET(addrinfo, ai_family);
+CHECK_SIZE_AND_OFFSET(addrinfo, ai_socktype);
+CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
+CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
+CHECK_SIZE_AND_OFFSET(addrinfo, ai_addrlen);
+CHECK_SIZE_AND_OFFSET(addrinfo, ai_canonname);
+CHECK_SIZE_AND_OFFSET(addrinfo, ai_addr);
+
+CHECK_TYPE_SIZE(hostent);
+CHECK_SIZE_AND_OFFSET(hostent, h_name);
+CHECK_SIZE_AND_OFFSET(hostent, h_aliases);
+CHECK_SIZE_AND_OFFSET(hostent, h_addrtype);
+CHECK_SIZE_AND_OFFSET(hostent, h_length);
+CHECK_SIZE_AND_OFFSET(hostent, h_addr_list);
+
+CHECK_TYPE_SIZE(iovec);
+CHECK_SIZE_AND_OFFSET(iovec, iov_base);
+CHECK_SIZE_AND_OFFSET(iovec, iov_len);
+
+CHECK_TYPE_SIZE(msghdr);
+CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
+CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
+CHECK_SIZE_AND_OFFSET(msghdr, msg_iov);
+CHECK_SIZE_AND_OFFSET(msghdr, msg_iovlen);
+CHECK_SIZE_AND_OFFSET(msghdr, msg_control);
+CHECK_SIZE_AND_OFFSET(msghdr, msg_controllen);
+CHECK_SIZE_AND_OFFSET(msghdr, msg_flags);
+
+CHECK_TYPE_SIZE(cmsghdr);
+CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
+CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
+CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
+
+COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
+CHECK_SIZE_AND_OFFSET(dirent, d_ino);
+#if SANITIZER_MAC
+CHECK_SIZE_AND_OFFSET(dirent, d_seekoff);
+#else
+CHECK_SIZE_AND_OFFSET(dirent, d_off);
+#endif
+CHECK_SIZE_AND_OFFSET(dirent, d_reclen);
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+COMPILER_CHECK(sizeof(__sanitizer_dirent64) <= sizeof(dirent64));
+CHECK_SIZE_AND_OFFSET(dirent64, d_ino);
+CHECK_SIZE_AND_OFFSET(dirent64, d_off);
+CHECK_SIZE_AND_OFFSET(dirent64, d_reclen);
+#endif
+
+CHECK_TYPE_SIZE(ifconf);
+CHECK_SIZE_AND_OFFSET(ifconf, ifc_len);
+CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
+
+CHECK_TYPE_SIZE(pollfd);
+CHECK_SIZE_AND_OFFSET(pollfd, fd);
+CHECK_SIZE_AND_OFFSET(pollfd, events);
+CHECK_SIZE_AND_OFFSET(pollfd, revents);
+
+CHECK_TYPE_SIZE(nfds_t);
+
+CHECK_TYPE_SIZE(sigset_t);
+
+COMPILER_CHECK(sizeof(__sanitizer_sigaction) == sizeof(struct sigaction));
+// Can't write checks for sa_handler and sa_sigaction due to them being
+// preprocessor macros.
+CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_mask);
+CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_flags);
+#if SANITIZER_LINUX
+CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_restorer);
+#endif
+
+#if SANITIZER_LINUX
+CHECK_TYPE_SIZE(__sysctl_args);
+CHECK_SIZE_AND_OFFSET(__sysctl_args, name);
+CHECK_SIZE_AND_OFFSET(__sysctl_args, nlen);
+CHECK_SIZE_AND_OFFSET(__sysctl_args, oldval);
+CHECK_SIZE_AND_OFFSET(__sysctl_args, oldlenp);
+CHECK_SIZE_AND_OFFSET(__sysctl_args, newval);
+CHECK_SIZE_AND_OFFSET(__sysctl_args, newlen);
+
+CHECK_TYPE_SIZE(__kernel_uid_t);
+CHECK_TYPE_SIZE(__kernel_gid_t);
+CHECK_TYPE_SIZE(__kernel_old_uid_t);
+CHECK_TYPE_SIZE(__kernel_old_gid_t);
+CHECK_TYPE_SIZE(__kernel_off_t);
+CHECK_TYPE_SIZE(__kernel_loff_t);
+CHECK_TYPE_SIZE(__kernel_fd_set);
+#endif
+
+#if !SANITIZER_ANDROID
+CHECK_TYPE_SIZE(wordexp_t);
+CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordc);
+CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordv);
+CHECK_SIZE_AND_OFFSET(wordexp_t, we_offs);
+#endif
+
+CHECK_TYPE_SIZE(tm);
+CHECK_SIZE_AND_OFFSET(tm, tm_sec);
+CHECK_SIZE_AND_OFFSET(tm, tm_min);
+CHECK_SIZE_AND_OFFSET(tm, tm_hour);
+CHECK_SIZE_AND_OFFSET(tm, tm_mday);
+CHECK_SIZE_AND_OFFSET(tm, tm_mon);
+CHECK_SIZE_AND_OFFSET(tm, tm_year);
+CHECK_SIZE_AND_OFFSET(tm, tm_wday);
+CHECK_SIZE_AND_OFFSET(tm, tm_yday);
+CHECK_SIZE_AND_OFFSET(tm, tm_isdst);
+CHECK_SIZE_AND_OFFSET(tm, tm_gmtoff);
+CHECK_SIZE_AND_OFFSET(tm, tm_zone);
+
+#if SANITIZER_LINUX
+CHECK_TYPE_SIZE(mntent);
+CHECK_SIZE_AND_OFFSET(mntent, mnt_fsname);
+CHECK_SIZE_AND_OFFSET(mntent, mnt_dir);
+CHECK_SIZE_AND_OFFSET(mntent, mnt_type);
+CHECK_SIZE_AND_OFFSET(mntent, mnt_opts);
+CHECK_SIZE_AND_OFFSET(mntent, mnt_freq);
+CHECK_SIZE_AND_OFFSET(mntent, mnt_passno);
+#endif
+
+CHECK_TYPE_SIZE(ether_addr);
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+CHECK_TYPE_SIZE(ipc_perm);
+CHECK_SIZE_AND_OFFSET(ipc_perm, __key);
+CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
+CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
+CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
+CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
+CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
+CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
+
+CHECK_TYPE_SIZE(shmid_ds);
+CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
+CHECK_SIZE_AND_OFFSET(shmid_ds, shm_segsz);
+CHECK_SIZE_AND_OFFSET(shmid_ds, shm_atime);
+CHECK_SIZE_AND_OFFSET(shmid_ds, shm_dtime);
+CHECK_SIZE_AND_OFFSET(shmid_ds, shm_ctime);
+CHECK_SIZE_AND_OFFSET(shmid_ds, shm_cpid);
+CHECK_SIZE_AND_OFFSET(shmid_ds, shm_lpid);
+CHECK_SIZE_AND_OFFSET(shmid_ds, shm_nattch);
+#endif
#endif // SANITIZER_LINUX || SANITIZER_MAC
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_posix.h b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
index 37581953db24..b9a0fc98c017 100644
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -15,44 +15,306 @@
#ifndef SANITIZER_PLATFORM_LIMITS_POSIX_H
#define SANITIZER_PLATFORM_LIMITS_POSIX_H
+#include "sanitizer_internal_defs.h"
#include "sanitizer_platform.h"
namespace __sanitizer {
extern unsigned struct_utsname_sz;
extern unsigned struct_stat_sz;
+#if !SANITIZER_IOS
extern unsigned struct_stat64_sz;
+#endif
extern unsigned struct_rusage_sz;
- extern unsigned struct_tm_sz;
extern unsigned struct_passwd_sz;
extern unsigned struct_group_sz;
- extern unsigned struct_sigaction_sz;
extern unsigned siginfo_t_sz;
extern unsigned struct_itimerval_sz;
extern unsigned pthread_t_sz;
- extern unsigned struct_sockaddr_sz;
+ extern unsigned pthread_cond_t_sz;
+ extern unsigned pid_t_sz;
+ extern unsigned timeval_sz;
+ extern unsigned uid_t_sz;
+ extern unsigned mbstate_t_sz;
+ extern unsigned struct_timezone_sz;
+ extern unsigned struct_tms_sz;
+ extern unsigned struct_itimerspec_sz;
+ extern unsigned struct_sigevent_sz;
+ extern unsigned struct_sched_param_sz;
+ extern unsigned struct_statfs_sz;
+ extern unsigned struct_statfs64_sz;
#if !SANITIZER_ANDROID
extern unsigned ucontext_t_sz;
#endif // !SANITIZER_ANDROID
#if SANITIZER_LINUX
+
+#if defined(__x86_64__)
+ const unsigned struct___old_kernel_stat_sz = 32;
+ const unsigned struct_kernel_stat_sz = 144;
+ const unsigned struct_kernel_stat64_sz = 0;
+#elif defined(__i386__)
+ const unsigned struct___old_kernel_stat_sz = 32;
+ const unsigned struct_kernel_stat_sz = 64;
+ const unsigned struct_kernel_stat64_sz = 96;
+#elif defined(__arm__)
+ const unsigned struct___old_kernel_stat_sz = 32;
+ const unsigned struct_kernel_stat_sz = 64;
+ const unsigned struct_kernel_stat64_sz = 104;
+#elif defined(__powerpc__) && !defined(__powerpc64__)
+ const unsigned struct___old_kernel_stat_sz = 32;
+ const unsigned struct_kernel_stat_sz = 72;
+ const unsigned struct_kernel_stat64_sz = 104;
+#elif defined(__powerpc64__)
+ const unsigned struct___old_kernel_stat_sz = 0;
+ const unsigned struct_kernel_stat_sz = 144;
+ const unsigned struct_kernel_stat64_sz = 104;
+#endif
+ const unsigned struct_io_event_sz = 32;
+ struct __sanitizer_perf_event_attr {
+ unsigned type;
+ unsigned size;
+ // More fields that vary with the kernel version.
+ };
+
+ extern unsigned struct_utimbuf_sz;
+ extern unsigned struct_new_utsname_sz;
+ extern unsigned struct_old_utsname_sz;
+ extern unsigned struct_oldold_utsname_sz;
+ extern unsigned struct_msqid_ds_sz;
+ extern unsigned struct_mq_attr_sz;
+ extern unsigned struct_timex_sz;
+ extern unsigned struct_ustat_sz;
+
extern unsigned struct_rlimit_sz;
- extern unsigned struct_dirent_sz;
- extern unsigned struct_statfs_sz;
extern unsigned struct_epoll_event_sz;
+ extern unsigned struct_sysinfo_sz;
extern unsigned struct_timespec_sz;
+ extern unsigned __user_cap_header_struct_sz;
+ extern unsigned __user_cap_data_struct_sz;
+ const unsigned old_sigset_t_sz = sizeof(unsigned long);
+ const unsigned struct_kexec_segment_sz = 4 * sizeof(unsigned long);
+
+ struct __sanitizer_iocb {
+ u64 aio_data;
+ u32 aio_key_or_aio_reserved1; // Simply crazy.
+ u32 aio_reserved1_or_aio_key; // Luckily, we don't need these.
+ u16 aio_lio_opcode;
+ s16 aio_reqprio;
+ u32 aio_fildes;
+ u64 aio_buf;
+ u64 aio_nbytes;
+ s64 aio_offset;
+ u64 aio_reserved2;
+ u64 aio_reserved3;
+ };
+
+ const unsigned iocb_cmd_pread = 0;
+ const unsigned iocb_cmd_pwrite = 1;
+
+ struct __sanitizer___sysctl_args {
+ int *name;
+ int nlen;
+ void *oldval;
+ uptr *oldlenp;
+ void *newval;
+ uptr newlen;
+ unsigned long ___unused[4];
+ };
#endif // SANITIZER_LINUX
#if SANITIZER_LINUX && !SANITIZER_ANDROID
- extern unsigned struct_dirent64_sz;
extern unsigned struct_rlimit64_sz;
- extern unsigned struct_statfs64_sz;
-#endif // SANITIZER_LINUX && !SANITIZER_ANDROID
+ extern unsigned struct_statvfs_sz;
+ extern unsigned struct_statvfs64_sz;
+
+ struct __sanitizer_ipc_perm {
+ int __key;
+ int uid;
+ int gid;
+ int cuid;
+ int cgid;
+#ifdef __powerpc__
+ unsigned mode;
+ unsigned __seq;
+ u64 __unused1;
+ u64 __unused2;
+#else
+ unsigned short mode;
+ unsigned short __pad1;
+ unsigned short __seq;
+ unsigned short __pad2;
+#if defined(__x86_64__) && !defined(_LP64)
+ u64 __unused1;
+ u64 __unused2;
+#else
+ unsigned long __unused1;
+ unsigned long __unused2;
+#endif
+#endif
+ };
+
+ struct __sanitizer_shmid_ds {
+ __sanitizer_ipc_perm shm_perm;
+ #ifndef __powerpc__
+ uptr shm_segsz;
+ #elif !defined(__powerpc64__)
+ uptr __unused0;
+ #endif
+ uptr shm_atime;
+ #ifndef _LP64
+ uptr __unused1;
+ #endif
+ uptr shm_dtime;
+ #ifndef _LP64
+ uptr __unused2;
+ #endif
+ uptr shm_ctime;
+ #ifndef _LP64
+ uptr __unused3;
+ #endif
+ #ifdef __powerpc__
+ uptr shm_segsz;
+ #endif
+ int shm_cpid;
+ int shm_lpid;
+ uptr shm_nattch;
+ uptr __unused4;
+ uptr __unused5;
+ };
+ #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
+
+ struct __sanitizer_iovec {
+ void *iov_base;
+ uptr iov_len;
+ };
+
+#if SANITIZER_MAC
+ typedef unsigned long __sanitizer_pthread_key_t;
+#else
+ typedef unsigned __sanitizer_pthread_key_t;
+#endif
+
+ struct __sanitizer_ether_addr {
+ u8 octet[6];
+ };
+
+ struct __sanitizer_tm {
+ int tm_sec;
+ int tm_min;
+ int tm_hour;
+ int tm_mday;
+ int tm_mon;
+ int tm_year;
+ int tm_wday;
+ int tm_yday;
+ int tm_isdst;
+ long int tm_gmtoff;
+ const char *tm_zone;
+ };
+
+#if SANITIZER_LINUX
+ struct __sanitizer_mntent {
+ char *mnt_fsname;
+ char *mnt_dir;
+ char *mnt_type;
+ char *mnt_opts;
+ int mnt_freq;
+ int mnt_passno;
+ };
+#endif
+
+#if SANITIZER_ANDROID || SANITIZER_MAC
+ struct __sanitizer_msghdr {
+ void *msg_name;
+ unsigned msg_namelen;
+ struct __sanitizer_iovec *msg_iov;
+ unsigned msg_iovlen;
+ void *msg_control;
+ unsigned msg_controllen;
+ int msg_flags;
+ };
+ struct __sanitizer_cmsghdr {
+ unsigned cmsg_len;
+ int cmsg_level;
+ int cmsg_type;
+ };
+#else
+ struct __sanitizer_msghdr {
+ void *msg_name;
+ unsigned msg_namelen;
+ struct __sanitizer_iovec *msg_iov;
+ uptr msg_iovlen;
+ void *msg_control;
+ uptr msg_controllen;
+ int msg_flags;
+ };
+ struct __sanitizer_cmsghdr {
+ uptr cmsg_len;
+ int cmsg_level;
+ int cmsg_type;
+ };
+#endif
+
+#if SANITIZER_MAC
+ struct __sanitizer_dirent {
+ unsigned long long d_ino;
+ unsigned long long d_seekoff;
+ unsigned short d_reclen;
+ // more fields that we don't care about
+ };
+#elif SANITIZER_ANDROID || defined(__x86_64__)
+ struct __sanitizer_dirent {
+ unsigned long long d_ino;
+ unsigned long long d_off;
+ unsigned short d_reclen;
+ // more fields that we don't care about
+ };
+#else
+ struct __sanitizer_dirent {
+ uptr d_ino;
+ uptr d_off;
+ unsigned short d_reclen;
+ // more fields that we don't care about
+ };
+#endif
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ struct __sanitizer_dirent64 {
+ unsigned long long d_ino;
+ unsigned long long d_off;
+ unsigned short d_reclen;
+ // more fields that we don't care about
+ };
+#endif
- void* __sanitizer_get_msghdr_iov_iov_base(void* msg, int idx);
- uptr __sanitizer_get_msghdr_iov_iov_len(void* msg, int idx);
- uptr __sanitizer_get_msghdr_iovlen(void* msg);
- uptr __sanitizer_get_socklen_t(void* socklen_ptr);
+#if SANITIZER_LINUX
+#if defined(_LP64) || defined(__x86_64__) || defined(__powerpc__)
+ typedef unsigned __sanitizer___kernel_uid_t;
+ typedef unsigned __sanitizer___kernel_gid_t;
+#else
+ typedef unsigned short __sanitizer___kernel_uid_t;
+ typedef unsigned short __sanitizer___kernel_gid_t;
+#endif
+#if defined(__x86_64__) && !defined(_LP64)
+ typedef long long __sanitizer___kernel_off_t;
+#else
+ typedef long __sanitizer___kernel_off_t;
+#endif
+
+#if defined(__powerpc__)
+ typedef unsigned int __sanitizer___kernel_old_uid_t;
+ typedef unsigned int __sanitizer___kernel_old_gid_t;
+#else
+ typedef unsigned short __sanitizer___kernel_old_uid_t;
+ typedef unsigned short __sanitizer___kernel_old_gid_t;
+#endif
+
+ typedef long long __sanitizer___kernel_loff_t;
+ typedef struct {
+ unsigned long fds_bits[1024 / (8 * sizeof(long))];
+ } __sanitizer___kernel_fd_set;
+#endif
// This thing depends on the platform. We are only interested in the upper
// limit. Verified with a compiler assert in .cc.
@@ -62,18 +324,53 @@ namespace __sanitizer {
void *align;
};
- uptr __sanitizer_get_sigaction_sa_sigaction(void *act);
- void __sanitizer_set_sigaction_sa_sigaction(void *act, uptr cb);
- bool __sanitizer_get_sigaction_sa_siginfo(void *act);
+#if SANITIZER_ANDROID
+ typedef unsigned long __sanitizer_sigset_t;
+#elif SANITIZER_MAC
+ typedef unsigned __sanitizer_sigset_t;
+#elif SANITIZER_LINUX
+ struct __sanitizer_sigset_t {
+ // The size is determined by looking at sizeof of real sigset_t on linux.
+ uptr val[128 / sizeof(uptr)];
+ };
+#endif
+
+ struct __sanitizer_sigaction {
+ union {
+ void (*sa_handler)(int sig);
+ void (*sa_sigaction)(int sig, void *siginfo, void *uctx);
+ };
+ __sanitizer_sigset_t sa_mask;
+ int sa_flags;
+#if SANITIZER_LINUX
+ void (*sa_restorer)();
+#endif
+ };
+
+ struct __sanitizer_kernel_sigset_t {
+ u8 sig[8];
+ };
- const unsigned struct_sigaction_max_sz = 256;
- union __sanitizer_sigaction {
- char size[struct_sigaction_max_sz]; // NOLINT
+ struct __sanitizer_kernel_sigaction_t {
+ union {
+ void (*sigaction)(int signo, void *info, void *ctx);
+ void (*handler)(int signo);
+ };
+ unsigned long sa_flags;
+ void (*sa_restorer)(void);
+ __sanitizer_kernel_sigset_t sa_mask;
};
extern uptr sig_ign;
extern uptr sig_dfl;
+ extern uptr sa_siginfo;
+
+#if SANITIZER_LINUX
+ extern int e_tabsz;
+#endif
+ extern int af_inet;
+ extern int af_inet6;
uptr __sanitizer_in_addr_sz(int af);
#if SANITIZER_LINUX
@@ -95,7 +392,7 @@ namespace __sanitizer {
char *ai_canonname;
void *ai_addr;
#else // LINUX
- uptr ai_addrlen;
+ unsigned ai_addrlen;
void *ai_addr;
char *ai_canonname;
#endif
@@ -110,6 +407,591 @@ namespace __sanitizer {
char **h_addr_list;
};
+ struct __sanitizer_pollfd {
+ int fd;
+ short events;
+ short revents;
+ };
+
+#if SANITIZER_ANDROID || SANITIZER_MAC
+ typedef unsigned __sanitizer_nfds_t;
+#else
+ typedef unsigned long __sanitizer_nfds_t;
+#endif
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ struct __sanitizer_glob_t {
+ uptr gl_pathc;
+ char **gl_pathv;
+ uptr gl_offs;
+ int gl_flags;
+
+ void (*gl_closedir)(void *dirp);
+ void *(*gl_readdir)(void *dirp);
+ void *(*gl_opendir)(const char *);
+ int (*gl_lstat)(const char *, void *);
+ int (*gl_stat)(const char *, void *);
+ };
+
+ extern int glob_nomatch;
+ extern int glob_altdirfunc;
+#endif
+
+ extern unsigned path_max;
+
+ struct __sanitizer_wordexp_t {
+ uptr we_wordc;
+ char **we_wordv;
+ uptr we_offs;
+ };
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID && \
+ (defined(__i386) || defined (__x86_64)) // NOLINT
+ extern unsigned struct_user_regs_struct_sz;
+ extern unsigned struct_user_fpregs_struct_sz;
+ extern unsigned struct_user_fpxregs_struct_sz;
+
+ extern int ptrace_peektext;
+ extern int ptrace_peekdata;
+ extern int ptrace_peekuser;
+ extern int ptrace_getregs;
+ extern int ptrace_setregs;
+ extern int ptrace_getfpregs;
+ extern int ptrace_setfpregs;
+ extern int ptrace_getfpxregs;
+ extern int ptrace_setfpxregs;
+ extern int ptrace_getsiginfo;
+ extern int ptrace_setsiginfo;
+ extern int ptrace_getregset;
+ extern int ptrace_setregset;
+#endif
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ extern unsigned struct_shminfo_sz;
+ extern unsigned struct_shm_info_sz;
+ extern int shmctl_ipc_stat;
+ extern int shmctl_ipc_info;
+ extern int shmctl_shm_info;
+ extern int shmctl_shm_stat;
+#endif
+
+ // ioctl arguments
+ struct __sanitizer_ifconf {
+ int ifc_len;
+ union {
+ void *ifcu_req;
+ } ifc_ifcu;
+#if SANITIZER_MAC
+ } __attribute__((packed));
+#else
+ };
+#endif
+
+#define IOC_SIZE(nr) (((nr) >> 16) & 0x3fff)
+
+ extern unsigned struct_arpreq_sz;
+ extern unsigned struct_ifreq_sz;
+ extern unsigned struct_termios_sz;
+ extern unsigned struct_winsize_sz;
+
+#if SANITIZER_LINUX
+ extern unsigned struct_cdrom_msf_sz;
+ extern unsigned struct_cdrom_multisession_sz;
+ extern unsigned struct_cdrom_read_audio_sz;
+ extern unsigned struct_cdrom_subchnl_sz;
+ extern unsigned struct_cdrom_ti_sz;
+ extern unsigned struct_cdrom_tocentry_sz;
+ extern unsigned struct_cdrom_tochdr_sz;
+ extern unsigned struct_cdrom_volctrl_sz;
+ extern unsigned struct_copr_buffer_sz;
+ extern unsigned struct_copr_debug_buf_sz;
+ extern unsigned struct_copr_msg_sz;
+ extern unsigned struct_ff_effect_sz;
+ extern unsigned struct_floppy_drive_params_sz;
+ extern unsigned struct_floppy_drive_struct_sz;
+ extern unsigned struct_floppy_fdc_state_sz;
+ extern unsigned struct_floppy_max_errors_sz;
+ extern unsigned struct_floppy_raw_cmd_sz;
+ extern unsigned struct_floppy_struct_sz;
+ extern unsigned struct_floppy_write_errors_sz;
+ extern unsigned struct_format_descr_sz;
+ extern unsigned struct_hd_driveid_sz;
+ extern unsigned struct_hd_geometry_sz;
+ extern unsigned struct_input_absinfo_sz;
+ extern unsigned struct_input_id_sz;
+ extern unsigned struct_midi_info_sz;
+ extern unsigned struct_mtget_sz;
+ extern unsigned struct_mtop_sz;
+ extern unsigned struct_mtpos_sz;
+ extern unsigned struct_rtentry_sz;
+ extern unsigned struct_sbi_instrument_sz;
+ extern unsigned struct_seq_event_rec_sz;
+ extern unsigned struct_synth_info_sz;
+ extern unsigned struct_termio_sz;
+ extern unsigned struct_vt_consize_sz;
+ extern unsigned struct_vt_mode_sz;
+ extern unsigned struct_vt_sizes_sz;
+ extern unsigned struct_vt_stat_sz;
+#endif
+
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ extern unsigned struct_audio_buf_info_sz;
+ extern unsigned struct_ax25_parms_struct_sz;
+ extern unsigned struct_cyclades_monitor_sz;
+ extern unsigned struct_input_keymap_entry_sz;
+ extern unsigned struct_ipx_config_data_sz;
+ extern unsigned struct_kbdiacrs_sz;
+ extern unsigned struct_kbentry_sz;
+ extern unsigned struct_kbkeycode_sz;
+ extern unsigned struct_kbsentry_sz;
+ extern unsigned struct_mtconfiginfo_sz;
+ extern unsigned struct_nr_parms_struct_sz;
+ extern unsigned struct_ppp_stats_sz;
+ extern unsigned struct_scc_modem_sz;
+ extern unsigned struct_scc_stat_sz;
+ extern unsigned struct_serial_multiport_struct_sz;
+ extern unsigned struct_serial_struct_sz;
+ extern unsigned struct_sockaddr_ax25_sz;
+ extern unsigned struct_unimapdesc_sz;
+ extern unsigned struct_unimapinit_sz;
+#endif
+
+#if !SANITIZER_ANDROID && !SANITIZER_MAC
+ extern unsigned struct_sioc_sg_req_sz;
+ extern unsigned struct_sioc_vif_req_sz;
+#endif
+
+ // ioctl request identifiers
+
+ // A special value to mark ioctls that are not present on the target platform,
+ // when it can not be determined without including any system headers.
+ extern unsigned IOCTL_NOT_PRESENT;
+
+ extern unsigned IOCTL_FIOASYNC;
+ extern unsigned IOCTL_FIOCLEX;
+ extern unsigned IOCTL_FIOGETOWN;
+ extern unsigned IOCTL_FIONBIO;
+ extern unsigned IOCTL_FIONCLEX;
+ extern unsigned IOCTL_FIOSETOWN;
+ extern unsigned IOCTL_SIOCADDMULTI;
+ extern unsigned IOCTL_SIOCATMARK;
+ extern unsigned IOCTL_SIOCDELMULTI;
+ extern unsigned IOCTL_SIOCGIFADDR;
+ extern unsigned IOCTL_SIOCGIFBRDADDR;
+ extern unsigned IOCTL_SIOCGIFCONF;
+ extern unsigned IOCTL_SIOCGIFDSTADDR;
+ extern unsigned IOCTL_SIOCGIFFLAGS;
+ extern unsigned IOCTL_SIOCGIFMETRIC;
+ extern unsigned IOCTL_SIOCGIFMTU;
+ extern unsigned IOCTL_SIOCGIFNETMASK;
+ extern unsigned IOCTL_SIOCGPGRP;
+ extern unsigned IOCTL_SIOCSIFADDR;
+ extern unsigned IOCTL_SIOCSIFBRDADDR;
+ extern unsigned IOCTL_SIOCSIFDSTADDR;
+ extern unsigned IOCTL_SIOCSIFFLAGS;
+ extern unsigned IOCTL_SIOCSIFMETRIC;
+ extern unsigned IOCTL_SIOCSIFMTU;
+ extern unsigned IOCTL_SIOCSIFNETMASK;
+ extern unsigned IOCTL_SIOCSPGRP;
+ extern unsigned IOCTL_TIOCCONS;
+ extern unsigned IOCTL_TIOCEXCL;
+ extern unsigned IOCTL_TIOCGETD;
+ extern unsigned IOCTL_TIOCGPGRP;
+ extern unsigned IOCTL_TIOCGWINSZ;
+ extern unsigned IOCTL_TIOCMBIC;
+ extern unsigned IOCTL_TIOCMBIS;
+ extern unsigned IOCTL_TIOCMGET;
+ extern unsigned IOCTL_TIOCMSET;
+ extern unsigned IOCTL_TIOCNOTTY;
+ extern unsigned IOCTL_TIOCNXCL;
+ extern unsigned IOCTL_TIOCOUTQ;
+ extern unsigned IOCTL_TIOCPKT;
+ extern unsigned IOCTL_TIOCSCTTY;
+ extern unsigned IOCTL_TIOCSETD;
+ extern unsigned IOCTL_TIOCSPGRP;
+ extern unsigned IOCTL_TIOCSTI;
+ extern unsigned IOCTL_TIOCSWINSZ;
+#if (SANITIZER_LINUX && !SANITIZER_ANDROID)
+ extern unsigned IOCTL_SIOCGETSGCNT;
+ extern unsigned IOCTL_SIOCGETVIFCNT;
+#endif
+#if SANITIZER_LINUX
+ extern unsigned IOCTL_EVIOCGABS;
+ extern unsigned IOCTL_EVIOCGBIT;
+ extern unsigned IOCTL_EVIOCGEFFECTS;
+ extern unsigned IOCTL_EVIOCGID;
+ extern unsigned IOCTL_EVIOCGKEY;
+ extern unsigned IOCTL_EVIOCGKEYCODE;
+ extern unsigned IOCTL_EVIOCGLED;
+ extern unsigned IOCTL_EVIOCGNAME;
+ extern unsigned IOCTL_EVIOCGPHYS;
+ extern unsigned IOCTL_EVIOCGRAB;
+ extern unsigned IOCTL_EVIOCGREP;
+ extern unsigned IOCTL_EVIOCGSND;
+ extern unsigned IOCTL_EVIOCGSW;
+ extern unsigned IOCTL_EVIOCGUNIQ;
+ extern unsigned IOCTL_EVIOCGVERSION;
+ extern unsigned IOCTL_EVIOCRMFF;
+ extern unsigned IOCTL_EVIOCSABS;
+ extern unsigned IOCTL_EVIOCSFF;
+ extern unsigned IOCTL_EVIOCSKEYCODE;
+ extern unsigned IOCTL_EVIOCSREP;
+ extern unsigned IOCTL_BLKFLSBUF;
+ extern unsigned IOCTL_BLKGETSIZE;
+ extern unsigned IOCTL_BLKRAGET;
+ extern unsigned IOCTL_BLKRASET;
+ extern unsigned IOCTL_BLKROGET;
+ extern unsigned IOCTL_BLKROSET;
+ extern unsigned IOCTL_BLKRRPART;
+ extern unsigned IOCTL_CDROMAUDIOBUFSIZ;
+ extern unsigned IOCTL_CDROMEJECT;
+ extern unsigned IOCTL_CDROMEJECT_SW;
+ extern unsigned IOCTL_CDROMMULTISESSION;
+ extern unsigned IOCTL_CDROMPAUSE;
+ extern unsigned IOCTL_CDROMPLAYMSF;
+ extern unsigned IOCTL_CDROMPLAYTRKIND;
+ extern unsigned IOCTL_CDROMREADAUDIO;
+ extern unsigned IOCTL_CDROMREADCOOKED;
+ extern unsigned IOCTL_CDROMREADMODE1;
+ extern unsigned IOCTL_CDROMREADMODE2;
+ extern unsigned IOCTL_CDROMREADRAW;
+ extern unsigned IOCTL_CDROMREADTOCENTRY;
+ extern unsigned IOCTL_CDROMREADTOCHDR;
+ extern unsigned IOCTL_CDROMRESET;
+ extern unsigned IOCTL_CDROMRESUME;
+ extern unsigned IOCTL_CDROMSEEK;
+ extern unsigned IOCTL_CDROMSTART;
+ extern unsigned IOCTL_CDROMSTOP;
+ extern unsigned IOCTL_CDROMSUBCHNL;
+ extern unsigned IOCTL_CDROMVOLCTRL;
+ extern unsigned IOCTL_CDROMVOLREAD;
+ extern unsigned IOCTL_CDROM_GET_UPC;
+ extern unsigned IOCTL_FDCLRPRM;
+ extern unsigned IOCTL_FDDEFPRM;
+ extern unsigned IOCTL_FDFLUSH;
+ extern unsigned IOCTL_FDFMTBEG;
+ extern unsigned IOCTL_FDFMTEND;
+ extern unsigned IOCTL_FDFMTTRK;
+ extern unsigned IOCTL_FDGETDRVPRM;
+ extern unsigned IOCTL_FDGETDRVSTAT;
+ extern unsigned IOCTL_FDGETDRVTYP;
+ extern unsigned IOCTL_FDGETFDCSTAT;
+ extern unsigned IOCTL_FDGETMAXERRS;
+ extern unsigned IOCTL_FDGETPRM;
+ extern unsigned IOCTL_FDMSGOFF;
+ extern unsigned IOCTL_FDMSGON;
+ extern unsigned IOCTL_FDPOLLDRVSTAT;
+ extern unsigned IOCTL_FDRAWCMD;
+ extern unsigned IOCTL_FDRESET;
+ extern unsigned IOCTL_FDSETDRVPRM;
+ extern unsigned IOCTL_FDSETEMSGTRESH;
+ extern unsigned IOCTL_FDSETMAXERRS;
+ extern unsigned IOCTL_FDSETPRM;
+ extern unsigned IOCTL_FDTWADDLE;
+ extern unsigned IOCTL_FDWERRORCLR;
+ extern unsigned IOCTL_FDWERRORGET;
+ extern unsigned IOCTL_HDIO_DRIVE_CMD;
+ extern unsigned IOCTL_HDIO_GETGEO;
+ extern unsigned IOCTL_HDIO_GET_32BIT;
+ extern unsigned IOCTL_HDIO_GET_DMA;
+ extern unsigned IOCTL_HDIO_GET_IDENTITY;
+ extern unsigned IOCTL_HDIO_GET_KEEPSETTINGS;
+ extern unsigned IOCTL_HDIO_GET_MULTCOUNT;
+ extern unsigned IOCTL_HDIO_GET_NOWERR;
+ extern unsigned IOCTL_HDIO_GET_UNMASKINTR;
+ extern unsigned IOCTL_HDIO_SET_32BIT;
+ extern unsigned IOCTL_HDIO_SET_DMA;
+ extern unsigned IOCTL_HDIO_SET_KEEPSETTINGS;
+ extern unsigned IOCTL_HDIO_SET_MULTCOUNT;
+ extern unsigned IOCTL_HDIO_SET_NOWERR;
+ extern unsigned IOCTL_HDIO_SET_UNMASKINTR;
+ extern unsigned IOCTL_MTIOCGET;
+ extern unsigned IOCTL_MTIOCPOS;
+ extern unsigned IOCTL_MTIOCTOP;
+ extern unsigned IOCTL_PPPIOCGASYNCMAP;
+ extern unsigned IOCTL_PPPIOCGDEBUG;
+ extern unsigned IOCTL_PPPIOCGFLAGS;
+ extern unsigned IOCTL_PPPIOCGUNIT;
+ extern unsigned IOCTL_PPPIOCGXASYNCMAP;
+ extern unsigned IOCTL_PPPIOCSASYNCMAP;
+ extern unsigned IOCTL_PPPIOCSDEBUG;
+ extern unsigned IOCTL_PPPIOCSFLAGS;
+ extern unsigned IOCTL_PPPIOCSMAXCID;
+ extern unsigned IOCTL_PPPIOCSMRU;
+ extern unsigned IOCTL_PPPIOCSXASYNCMAP;
+ extern unsigned IOCTL_SIOCADDRT;
+ extern unsigned IOCTL_SIOCDARP;
+ extern unsigned IOCTL_SIOCDELRT;
+ extern unsigned IOCTL_SIOCDRARP;
+ extern unsigned IOCTL_SIOCGARP;
+ extern unsigned IOCTL_SIOCGIFENCAP;
+ extern unsigned IOCTL_SIOCGIFHWADDR;
+ extern unsigned IOCTL_SIOCGIFMAP;
+ extern unsigned IOCTL_SIOCGIFMEM;
+ extern unsigned IOCTL_SIOCGIFNAME;
+ extern unsigned IOCTL_SIOCGIFSLAVE;
+ extern unsigned IOCTL_SIOCGRARP;
+ extern unsigned IOCTL_SIOCGSTAMP;
+ extern unsigned IOCTL_SIOCSARP;
+ extern unsigned IOCTL_SIOCSIFENCAP;
+ extern unsigned IOCTL_SIOCSIFHWADDR;
+ extern unsigned IOCTL_SIOCSIFLINK;
+ extern unsigned IOCTL_SIOCSIFMAP;
+ extern unsigned IOCTL_SIOCSIFMEM;
+ extern unsigned IOCTL_SIOCSIFSLAVE;
+ extern unsigned IOCTL_SIOCSRARP;
+ extern unsigned IOCTL_SNDCTL_COPR_HALT;
+ extern unsigned IOCTL_SNDCTL_COPR_LOAD;
+ extern unsigned IOCTL_SNDCTL_COPR_RCODE;
+ extern unsigned IOCTL_SNDCTL_COPR_RCVMSG;
+ extern unsigned IOCTL_SNDCTL_COPR_RDATA;
+ extern unsigned IOCTL_SNDCTL_COPR_RESET;
+ extern unsigned IOCTL_SNDCTL_COPR_RUN;
+ extern unsigned IOCTL_SNDCTL_COPR_SENDMSG;
+ extern unsigned IOCTL_SNDCTL_COPR_WCODE;
+ extern unsigned IOCTL_SNDCTL_COPR_WDATA;
+ extern unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE;
+ extern unsigned IOCTL_SNDCTL_DSP_GETFMTS;
+ extern unsigned IOCTL_SNDCTL_DSP_NONBLOCK;
+ extern unsigned IOCTL_SNDCTL_DSP_POST;
+ extern unsigned IOCTL_SNDCTL_DSP_RESET;
+ extern unsigned IOCTL_SNDCTL_DSP_SETFMT;
+ extern unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT;
+ extern unsigned IOCTL_SNDCTL_DSP_SPEED;
+ extern unsigned IOCTL_SNDCTL_DSP_STEREO;
+ extern unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE;
+ extern unsigned IOCTL_SNDCTL_DSP_SYNC;
+ extern unsigned IOCTL_SNDCTL_FM_4OP_ENABLE;
+ extern unsigned IOCTL_SNDCTL_FM_LOAD_INSTR;
+ extern unsigned IOCTL_SNDCTL_MIDI_INFO;
+ extern unsigned IOCTL_SNDCTL_MIDI_PRETIME;
+ extern unsigned IOCTL_SNDCTL_SEQ_CTRLRATE;
+ extern unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT;
+ extern unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT;
+ extern unsigned IOCTL_SNDCTL_SEQ_NRMIDIS;
+ extern unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS;
+ extern unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND;
+ extern unsigned IOCTL_SNDCTL_SEQ_PANIC;
+ extern unsigned IOCTL_SNDCTL_SEQ_PERCMODE;
+ extern unsigned IOCTL_SNDCTL_SEQ_RESET;
+ extern unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES;
+ extern unsigned IOCTL_SNDCTL_SEQ_SYNC;
+ extern unsigned IOCTL_SNDCTL_SEQ_TESTMIDI;
+ extern unsigned IOCTL_SNDCTL_SEQ_THRESHOLD;
+ extern unsigned IOCTL_SNDCTL_SYNTH_INFO;
+ extern unsigned IOCTL_SNDCTL_SYNTH_MEMAVL;
+ extern unsigned IOCTL_SNDCTL_TMR_CONTINUE;
+ extern unsigned IOCTL_SNDCTL_TMR_METRONOME;
+ extern unsigned IOCTL_SNDCTL_TMR_SELECT;
+ extern unsigned IOCTL_SNDCTL_TMR_SOURCE;
+ extern unsigned IOCTL_SNDCTL_TMR_START;
+ extern unsigned IOCTL_SNDCTL_TMR_STOP;
+ extern unsigned IOCTL_SNDCTL_TMR_TEMPO;
+ extern unsigned IOCTL_SNDCTL_TMR_TIMEBASE;
+ extern unsigned IOCTL_SOUND_MIXER_READ_ALTPCM;
+ extern unsigned IOCTL_SOUND_MIXER_READ_BASS;
+ extern unsigned IOCTL_SOUND_MIXER_READ_CAPS;
+ extern unsigned IOCTL_SOUND_MIXER_READ_CD;
+ extern unsigned IOCTL_SOUND_MIXER_READ_DEVMASK;
+ extern unsigned IOCTL_SOUND_MIXER_READ_ENHANCE;
+ extern unsigned IOCTL_SOUND_MIXER_READ_IGAIN;
+ extern unsigned IOCTL_SOUND_MIXER_READ_IMIX;
+ extern unsigned IOCTL_SOUND_MIXER_READ_LINE1;
+ extern unsigned IOCTL_SOUND_MIXER_READ_LINE2;
+ extern unsigned IOCTL_SOUND_MIXER_READ_LINE3;
+ extern unsigned IOCTL_SOUND_MIXER_READ_LINE;
+ extern unsigned IOCTL_SOUND_MIXER_READ_LOUD;
+ extern unsigned IOCTL_SOUND_MIXER_READ_MIC;
+ extern unsigned IOCTL_SOUND_MIXER_READ_MUTE;
+ extern unsigned IOCTL_SOUND_MIXER_READ_OGAIN;
+ extern unsigned IOCTL_SOUND_MIXER_READ_PCM;
+ extern unsigned IOCTL_SOUND_MIXER_READ_RECLEV;
+ extern unsigned IOCTL_SOUND_MIXER_READ_RECMASK;
+ extern unsigned IOCTL_SOUND_MIXER_READ_RECSRC;
+ extern unsigned IOCTL_SOUND_MIXER_READ_SPEAKER;
+ extern unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS;
+ extern unsigned IOCTL_SOUND_MIXER_READ_SYNTH;
+ extern unsigned IOCTL_SOUND_MIXER_READ_TREBLE;
+ extern unsigned IOCTL_SOUND_MIXER_READ_VOLUME;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_BASS;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_CD;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_IMIX;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE1;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE2;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE3;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_LINE;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_LOUD;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_MIC;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_MUTE;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_PCM;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE;
+ extern unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME;
+ extern unsigned IOCTL_SOUND_PCM_READ_BITS;
+ extern unsigned IOCTL_SOUND_PCM_READ_CHANNELS;
+ extern unsigned IOCTL_SOUND_PCM_READ_FILTER;
+ extern unsigned IOCTL_SOUND_PCM_READ_RATE;
+ extern unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS;
+ extern unsigned IOCTL_SOUND_PCM_WRITE_FILTER;
+ extern unsigned IOCTL_TCFLSH;
+ extern unsigned IOCTL_TCGETA;
+ extern unsigned IOCTL_TCGETS;
+ extern unsigned IOCTL_TCSBRK;
+ extern unsigned IOCTL_TCSBRKP;
+ extern unsigned IOCTL_TCSETA;
+ extern unsigned IOCTL_TCSETAF;
+ extern unsigned IOCTL_TCSETAW;
+ extern unsigned IOCTL_TCSETS;
+ extern unsigned IOCTL_TCSETSF;
+ extern unsigned IOCTL_TCSETSW;
+ extern unsigned IOCTL_TCXONC;
+ extern unsigned IOCTL_TIOCGLCKTRMIOS;
+ extern unsigned IOCTL_TIOCGSOFTCAR;
+ extern unsigned IOCTL_TIOCINQ;
+ extern unsigned IOCTL_TIOCLINUX;
+ extern unsigned IOCTL_TIOCSERCONFIG;
+ extern unsigned IOCTL_TIOCSERGETLSR;
+ extern unsigned IOCTL_TIOCSERGWILD;
+ extern unsigned IOCTL_TIOCSERSWILD;
+ extern unsigned IOCTL_TIOCSLCKTRMIOS;
+ extern unsigned IOCTL_TIOCSSOFTCAR;
+ extern unsigned IOCTL_VT_ACTIVATE;
+ extern unsigned IOCTL_VT_DISALLOCATE;
+ extern unsigned IOCTL_VT_GETMODE;
+ extern unsigned IOCTL_VT_GETSTATE;
+ extern unsigned IOCTL_VT_OPENQRY;
+ extern unsigned IOCTL_VT_RELDISP;
+ extern unsigned IOCTL_VT_RESIZE;
+ extern unsigned IOCTL_VT_RESIZEX;
+ extern unsigned IOCTL_VT_SENDSIG;
+ extern unsigned IOCTL_VT_SETMODE;
+ extern unsigned IOCTL_VT_WAITACTIVE;
+#endif
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ extern unsigned IOCTL_CYGETDEFTHRESH;
+ extern unsigned IOCTL_CYGETDEFTIMEOUT;
+ extern unsigned IOCTL_CYGETMON;
+ extern unsigned IOCTL_CYGETTHRESH;
+ extern unsigned IOCTL_CYGETTIMEOUT;
+ extern unsigned IOCTL_CYSETDEFTHRESH;
+ extern unsigned IOCTL_CYSETDEFTIMEOUT;
+ extern unsigned IOCTL_CYSETTHRESH;
+ extern unsigned IOCTL_CYSETTIMEOUT;
+ extern unsigned IOCTL_EQL_EMANCIPATE;
+ extern unsigned IOCTL_EQL_ENSLAVE;
+ extern unsigned IOCTL_EQL_GETMASTRCFG;
+ extern unsigned IOCTL_EQL_GETSLAVECFG;
+ extern unsigned IOCTL_EQL_SETMASTRCFG;
+ extern unsigned IOCTL_EQL_SETSLAVECFG;
+ extern unsigned IOCTL_EVIOCGKEYCODE_V2;
+ extern unsigned IOCTL_EVIOCGPROP;
+ extern unsigned IOCTL_EVIOCSKEYCODE_V2;
+ extern unsigned IOCTL_FS_IOC_GETFLAGS;
+ extern unsigned IOCTL_FS_IOC_GETVERSION;
+ extern unsigned IOCTL_FS_IOC_SETFLAGS;
+ extern unsigned IOCTL_FS_IOC_SETVERSION;
+ extern unsigned IOCTL_GIO_CMAP;
+ extern unsigned IOCTL_GIO_FONT;
+ extern unsigned IOCTL_GIO_SCRNMAP;
+ extern unsigned IOCTL_GIO_UNIMAP;
+ extern unsigned IOCTL_GIO_UNISCRNMAP;
+ extern unsigned IOCTL_KDADDIO;
+ extern unsigned IOCTL_KDDELIO;
+ extern unsigned IOCTL_KDDISABIO;
+ extern unsigned IOCTL_KDENABIO;
+ extern unsigned IOCTL_KDGETKEYCODE;
+ extern unsigned IOCTL_KDGETLED;
+ extern unsigned IOCTL_KDGETMODE;
+ extern unsigned IOCTL_KDGKBDIACR;
+ extern unsigned IOCTL_KDGKBENT;
+ extern unsigned IOCTL_KDGKBLED;
+ extern unsigned IOCTL_KDGKBMETA;
+ extern unsigned IOCTL_KDGKBMODE;
+ extern unsigned IOCTL_KDGKBSENT;
+ extern unsigned IOCTL_KDGKBTYPE;
+ extern unsigned IOCTL_KDMAPDISP;
+ extern unsigned IOCTL_KDMKTONE;
+ extern unsigned IOCTL_KDSETKEYCODE;
+ extern unsigned IOCTL_KDSETLED;
+ extern unsigned IOCTL_KDSETMODE;
+ extern unsigned IOCTL_KDSIGACCEPT;
+ extern unsigned IOCTL_KDSKBDIACR;
+ extern unsigned IOCTL_KDSKBENT;
+ extern unsigned IOCTL_KDSKBLED;
+ extern unsigned IOCTL_KDSKBMETA;
+ extern unsigned IOCTL_KDSKBMODE;
+ extern unsigned IOCTL_KDSKBSENT;
+ extern unsigned IOCTL_KDUNMAPDISP;
+ extern unsigned IOCTL_KIOCSOUND;
+ extern unsigned IOCTL_LPABORT;
+ extern unsigned IOCTL_LPABORTOPEN;
+ extern unsigned IOCTL_LPCAREFUL;
+ extern unsigned IOCTL_LPCHAR;
+ extern unsigned IOCTL_LPGETIRQ;
+ extern unsigned IOCTL_LPGETSTATUS;
+ extern unsigned IOCTL_LPRESET;
+ extern unsigned IOCTL_LPSETIRQ;
+ extern unsigned IOCTL_LPTIME;
+ extern unsigned IOCTL_LPWAIT;
+ extern unsigned IOCTL_MTIOCGETCONFIG;
+ extern unsigned IOCTL_MTIOCSETCONFIG;
+ extern unsigned IOCTL_PIO_CMAP;
+ extern unsigned IOCTL_PIO_FONT;
+ extern unsigned IOCTL_PIO_SCRNMAP;
+ extern unsigned IOCTL_PIO_UNIMAP;
+ extern unsigned IOCTL_PIO_UNIMAPCLR;
+ extern unsigned IOCTL_PIO_UNISCRNMAP;
+ extern unsigned IOCTL_SCSI_IOCTL_GET_IDLUN;
+ extern unsigned IOCTL_SCSI_IOCTL_PROBE_HOST;
+ extern unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE;
+ extern unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE;
+ extern unsigned IOCTL_SIOCAIPXITFCRT;
+ extern unsigned IOCTL_SIOCAIPXPRISLT;
+ extern unsigned IOCTL_SIOCAX25ADDUID;
+ extern unsigned IOCTL_SIOCAX25DELUID;
+ extern unsigned IOCTL_SIOCAX25GETPARMS;
+ extern unsigned IOCTL_SIOCAX25GETUID;
+ extern unsigned IOCTL_SIOCAX25NOUID;
+ extern unsigned IOCTL_SIOCAX25SETPARMS;
+ extern unsigned IOCTL_SIOCDEVPLIP;
+ extern unsigned IOCTL_SIOCIPXCFGDATA;
+ extern unsigned IOCTL_SIOCNRDECOBS;
+ extern unsigned IOCTL_SIOCNRGETPARMS;
+ extern unsigned IOCTL_SIOCNRRTCTL;
+ extern unsigned IOCTL_SIOCNRSETPARMS;
+ extern unsigned IOCTL_SNDCTL_DSP_GETISPACE;
+ extern unsigned IOCTL_SNDCTL_DSP_GETOSPACE;
+ extern unsigned IOCTL_TIOCGSERIAL;
+ extern unsigned IOCTL_TIOCSERGETMULTI;
+ extern unsigned IOCTL_TIOCSERSETMULTI;
+ extern unsigned IOCTL_TIOCSSERIAL;
+#endif
+
+ extern const int errno_EOWNERDEAD;
} // namespace __sanitizer
+#define CHECK_TYPE_SIZE(TYPE) \
+ COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
+
+#define CHECK_SIZE_AND_OFFSET(CLASS, MEMBER) \
+ COMPILER_CHECK(sizeof(((__sanitizer_##CLASS *) NULL)->MEMBER) == \
+ sizeof(((CLASS *) NULL)->MEMBER)); \
+ COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) == \
+ offsetof(CLASS, MEMBER))
+
+// For sigaction, which is a function and struct at the same time,
+// and thus requires explicit "struct" in sizeof() expression.
+#define CHECK_STRUCT_SIZE_AND_OFFSET(CLASS, MEMBER) \
+ COMPILER_CHECK(sizeof(((struct __sanitizer_##CLASS *) NULL)->MEMBER) == \
+ sizeof(((struct CLASS *) NULL)->MEMBER)); \
+ COMPILER_CHECK(offsetof(struct __sanitizer_##CLASS, MEMBER) == \
+ offsetof(struct CLASS, MEMBER))
+
#endif
diff --git a/lib/sanitizer_common/sanitizer_posix.cc b/lib/sanitizer_common/sanitizer_posix.cc
index af25b245fdd3..ffe91df1a59e 100644
--- a/lib/sanitizer_common/sanitizer_posix.cc
+++ b/lib/sanitizer_common/sanitizer_posix.cc
@@ -29,6 +29,24 @@ uptr GetMmapGranularity() {
return GetPageSize();
}
+uptr GetMaxVirtualAddress() {
+#if SANITIZER_WORDSIZE == 64
+# if defined(__powerpc64__)
+ // On PowerPC64 we have two different address space layouts: 44- and 46-bit.
+ // We somehow need to figure our which one we are using now and choose
+ // one of 0x00000fffffffffffUL and 0x00003fffffffffffUL.
+ // Note that with 'ulimit -s unlimited' the stack is moved away from the top
+ // of the address space, so simply checking the stack address is not enough.
+ return (1ULL << 44) - 1; // 0x00000fffffffffffUL
+# else
+ return (1ULL << 47) - 1; // 0x00007fffffffffffUL;
+# endif
+#else // SANITIZER_WORDSIZE == 32
+ // FIXME: We can probably lower this on Android?
+ return (1ULL << 32) - 1; // 0xffffffff;
+#endif // SANITIZER_WORDSIZE
+}
+
void *MmapOrDie(uptr size, const char *mem_type) {
size = RoundUpTo(size, GetPageSizeCached());
uptr res = internal_mmap(0, size,
@@ -155,6 +173,77 @@ const char *GetPwd() {
return GetEnv("PWD");
}
+char *FindPathToBinary(const char *name) {
+ const char *path = GetEnv("PATH");
+ if (!path)
+ return 0;
+ uptr name_len = internal_strlen(name);
+ InternalScopedBuffer<char> buffer(kMaxPathLength);
+ const char *beg = path;
+ while (true) {
+ const char *end = internal_strchrnul(beg, ':');
+ uptr prefix_len = end - beg;
+ if (prefix_len + name_len + 2 <= kMaxPathLength) {
+ internal_memcpy(buffer.data(), beg, prefix_len);
+ buffer[prefix_len] = '/';
+ internal_memcpy(&buffer[prefix_len + 1], name, name_len);
+ buffer[prefix_len + 1 + name_len] = '\0';
+ if (FileExists(buffer.data()))
+ return internal_strdup(buffer.data());
+ }
+ if (*end == '\0') break;
+ beg = end + 1;
+ }
+ return 0;
+}
+
+void MaybeOpenReportFile() {
+ if (!log_to_file || (report_fd_pid == internal_getpid())) return;
+ InternalScopedBuffer<char> report_path_full(4096);
+ internal_snprintf(report_path_full.data(), report_path_full.size(),
+ "%s.%d", report_path_prefix, internal_getpid());
+ uptr openrv = OpenFile(report_path_full.data(), true);
+ if (internal_iserror(openrv)) {
+ report_fd = kStderrFd;
+ log_to_file = false;
+ Report("ERROR: Can't open file: %s\n", report_path_full.data());
+ Die();
+ }
+ if (report_fd != kInvalidFd) {
+ // We're in the child. Close the parent's log.
+ internal_close(report_fd);
+ }
+ report_fd = openrv;
+ report_fd_pid = internal_getpid();
+}
+
+void RawWrite(const char *buffer) {
+ static const char *kRawWriteError =
+ "RawWrite can't output requested buffer!\n";
+ uptr length = (uptr)internal_strlen(buffer);
+ MaybeOpenReportFile();
+ if (length != internal_write(report_fd, buffer, length)) {
+ internal_write(report_fd, kRawWriteError, internal_strlen(kRawWriteError));
+ Die();
+ }
+}
+
+bool GetCodeRangeForFile(const char *module, uptr *start, uptr *end) {
+ uptr s, e, off, prot;
+ InternalMmapVector<char> fn(4096);
+ fn.push_back(0);
+ MemoryMappingLayout proc_maps(/*cache_enabled*/false);
+ while (proc_maps.Next(&s, &e, &off, &fn[0], fn.capacity(), &prot)) {
+ if ((prot & MemoryMappingLayout::kProtectionExecute) != 0
+ && internal_strcmp(module, &fn[0]) == 0) {
+ *start = s;
+ *end = e;
+ return true;
+ }
+ }
+ return false;
+}
+
} // namespace __sanitizer
#endif // SANITIZER_LINUX || SANITIZER_MAC
diff --git a/lib/sanitizer_common/sanitizer_posix_libcdep.cc b/lib/sanitizer_common/sanitizer_posix_libcdep.cc
index 43da171ba271..6032f520dee0 100644
--- a/lib/sanitizer_common/sanitizer_posix_libcdep.cc
+++ b/lib/sanitizer_common/sanitizer_posix_libcdep.cc
@@ -89,28 +89,6 @@ int internal_isatty(fd_t fd) {
return isatty(fd);
}
-#ifndef SANITIZER_GO
-void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp,
- uptr stack_top, uptr stack_bottom, bool fast) {
-#if !SANITIZER_CAN_FAST_UNWIND
- fast = false;
-#endif
-#if SANITIZER_MAC
- // Always unwind fast on Mac.
- (void)fast;
-#else
- if (!fast || (stack_top == stack_bottom))
- return stack->SlowUnwindStack(pc, max_s);
-#endif // SANITIZER_MAC
- stack->size = 0;
- stack->trace[0] = pc;
- if (max_s > 1) {
- stack->max_size = max_s;
- stack->FastUnwindStack(pc, bp, stack_top, stack_bottom);
- }
-}
-#endif // SANITIZER_GO
-
} // namespace __sanitizer
#endif
diff --git a/lib/sanitizer_common/sanitizer_printf.cc b/lib/sanitizer_common/sanitizer_printf.cc
index 5935d7f17a5e..bbdb24b685de 100644
--- a/lib/sanitizer_common/sanitizer_printf.cc
+++ b/lib/sanitizer_common/sanitizer_printf.cc
@@ -21,7 +21,7 @@
#include <stdio.h>
#include <stdarg.h>
-#if SANITIZER_WINDOWS
+#if SANITIZER_WINDOWS && !defined(va_copy)
# define va_copy(dst, src) ((dst) = (src))
#endif
@@ -38,45 +38,60 @@ static int AppendChar(char **buff, const char *buff_end, char c) {
}
// Appends number in a given base to buffer. If its length is less than
-// "minimal_num_length", it is padded with leading zeroes.
-static int AppendUnsigned(char **buff, const char *buff_end, u64 num,
- u8 base, u8 minimal_num_length) {
+// |minimal_num_length|, it is padded with leading zeroes or spaces, depending
+// on the value of |pad_with_zero|.
+static int AppendNumber(char **buff, const char *buff_end, u64 absolute_value,
+ u8 base, u8 minimal_num_length, bool pad_with_zero,
+ bool negative) {
uptr const kMaxLen = 30;
RAW_CHECK(base == 10 || base == 16);
+ RAW_CHECK(base == 10 || !negative);
+ RAW_CHECK(absolute_value || !negative);
RAW_CHECK(minimal_num_length < kMaxLen);
+ int result = 0;
+ if (negative && minimal_num_length)
+ --minimal_num_length;
+ if (negative && pad_with_zero)
+ result += AppendChar(buff, buff_end, '-');
uptr num_buffer[kMaxLen];
- uptr pos = 0;
+ int pos = 0;
do {
- RAW_CHECK_MSG(pos < kMaxLen, "appendNumber buffer overflow");
- num_buffer[pos++] = num % base;
- num /= base;
- } while (num > 0);
+ RAW_CHECK_MSG((uptr)pos < kMaxLen, "AppendNumber buffer overflow");
+ num_buffer[pos++] = absolute_value % base;
+ absolute_value /= base;
+ } while (absolute_value > 0);
if (pos < minimal_num_length) {
// Make sure compiler doesn't insert call to memset here.
internal_memset(&num_buffer[pos], 0,
sizeof(num_buffer[0]) * (minimal_num_length - pos));
pos = minimal_num_length;
}
- int result = 0;
- while (pos-- > 0) {
- uptr digit = num_buffer[pos];
+ RAW_CHECK(pos > 0);
+ pos--;
+ for (; pos >= 0 && num_buffer[pos] == 0; pos--) {
+ char c = (pad_with_zero || pos == 0) ? '0' : ' ';
+ result += AppendChar(buff, buff_end, c);
+ }
+ if (negative && !pad_with_zero) result += AppendChar(buff, buff_end, '-');
+ for (; pos >= 0; pos--) {
+ char digit = static_cast<char>(num_buffer[pos]);
result += AppendChar(buff, buff_end, (digit < 10) ? '0' + digit
: 'a' + digit - 10);
}
return result;
}
+static int AppendUnsigned(char **buff, const char *buff_end, u64 num, u8 base,
+ u8 minimal_num_length, bool pad_with_zero) {
+ return AppendNumber(buff, buff_end, num, base, minimal_num_length,
+ pad_with_zero, false /* negative */);
+}
+
static int AppendSignedDecimal(char **buff, const char *buff_end, s64 num,
- u8 minimal_num_length) {
- int result = 0;
- if (num < 0) {
- result += AppendChar(buff, buff_end, '-');
- num = -num;
- if (minimal_num_length)
- --minimal_num_length;
- }
- result += AppendUnsigned(buff, buff_end, (u64)num, 10, minimal_num_length);
- return result;
+ u8 minimal_num_length, bool pad_with_zero) {
+ bool negative = (num < 0);
+ return AppendNumber(buff, buff_end, (u64)(negative ? -num : num), 10,
+ minimal_num_length, pad_with_zero, negative);
}
static int AppendString(char **buff, const char *buff_end, const char *s) {
@@ -93,14 +108,14 @@ static int AppendPointer(char **buff, const char *buff_end, u64 ptr_value) {
int result = 0;
result += AppendString(buff, buff_end, "0x");
result += AppendUnsigned(buff, buff_end, ptr_value, 16,
- (SANITIZER_WORDSIZE == 64) ? 12 : 8);
+ (SANITIZER_WORDSIZE == 64) ? 12 : 8, true);
return result;
}
int VSNPrintf(char *buff, int buff_length,
const char *format, va_list args) {
static const char *kPrintfFormatsHelp =
- "Supported Printf formats: %(0[0-9]*)?(z|ll)?{d,u,x}; %p; %s; %c\n";
+ "Supported Printf formats: %([0-9]*)?(z|ll)?{d,u,x}; %p; %s; %c\n";
RAW_CHECK(format);
RAW_CHECK(buff_length > 0);
const char *buff_end = &buff[buff_length - 1];
@@ -112,11 +127,11 @@ int VSNPrintf(char *buff, int buff_length,
continue;
}
cur++;
- bool have_width = (*cur == '0');
+ bool have_width = (*cur >= '0' && *cur <= '9');
+ bool pad_with_zero = (*cur == '0');
int width = 0;
if (have_width) {
while (*cur >= '0' && *cur <= '9') {
- have_width = true;
width = width * 10 + *cur++ - '0';
}
}
@@ -132,7 +147,8 @@ int VSNPrintf(char *buff, int buff_length,
dval = have_ll ? va_arg(args, s64)
: have_z ? va_arg(args, sptr)
: va_arg(args, int);
- result += AppendSignedDecimal(&buff, buff_end, dval, width);
+ result += AppendSignedDecimal(&buff, buff_end, dval, width,
+ pad_with_zero);
break;
}
case 'u':
@@ -141,7 +157,7 @@ int VSNPrintf(char *buff, int buff_length,
: have_z ? va_arg(args, uptr)
: va_arg(args, unsigned);
result += AppendUnsigned(&buff, buff_end, uval,
- (*cur == 'u') ? 10 : 16, width);
+ (*cur == 'u') ? 10 : 16, width, pad_with_zero);
break;
}
case 'p': {
@@ -179,17 +195,22 @@ void SetPrintfAndReportCallback(void (*callback)(const char *)) {
PrintfAndReportCallback = callback;
}
-#if SANITIZER_SUPPORTS_WEAK_HOOKS
// Can be overriden in frontend.
-SANITIZER_WEAK_ATTRIBUTE SANITIZER_INTERFACE_ATTRIBUTE
+#if SANITIZER_SUPPORTS_WEAK_HOOKS
+SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
+void OnPrint(const char *str) {
+ (void)str;
+}
+#elif defined(SANITIZER_GO) && defined(TSAN_EXTERNAL_HOOKS)
void OnPrint(const char *str);
+#else
+void OnPrint(const char *str) {
+ (void)str;
+}
#endif
static void CallPrintfAndReportCallback(const char *str) {
-#if SANITIZER_SUPPORTS_WEAK_HOOKS
- if (&OnPrint != NULL)
- OnPrint(str);
-#endif
+ OnPrint(str);
if (PrintfAndReportCallback)
PrintfAndReportCallback(str);
}
@@ -273,4 +294,13 @@ int internal_snprintf(char *buffer, uptr length, const char *format, ...) {
return needed_length;
}
+void InternalScopedString::append(const char *format, ...) {
+ CHECK_LT(length_, size());
+ va_list args;
+ va_start(args, format);
+ VSNPrintf(data() + length_, size() - length_, format, args);
+ va_end(args);
+ length_ += internal_strlen(data() + length_);
+}
+
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_procmaps.h b/lib/sanitizer_common/sanitizer_procmaps.h
index b96f09ec4561..65bcac6338d5 100644
--- a/lib/sanitizer_common/sanitizer_procmaps.h
+++ b/lib/sanitizer_common/sanitizer_procmaps.h
@@ -32,7 +32,7 @@ class MemoryMappingLayout {
}
};
-#else // _WIN32
+#else // SANITIZER_WINDOWS
#if SANITIZER_LINUX
struct ProcSelfMapsBuff {
char *data;
@@ -118,7 +118,18 @@ class MemoryMappingLayout {
# endif
};
-#endif // _WIN32
+typedef void (*fill_profile_f)(uptr start, uptr rss, bool file,
+ /*out*/uptr *stats, uptr stats_size);
+
+// Parse the contents of /proc/self/smaps and generate a memory profile.
+// |cb| is a tool-specific callback that fills the |stats| array containing
+// |stats_size| elements.
+void GetMemoryProfile(fill_profile_f cb, uptr *stats, uptr stats_size);
+
+// Returns code range for the specified module.
+bool GetCodeRangeForFile(const char *module, uptr *start, uptr *end);
+
+#endif // SANITIZER_WINDOWS
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_quarantine.h b/lib/sanitizer_common/sanitizer_quarantine.h
index 599d13645dd7..db4eb74505f9 100644
--- a/lib/sanitizer_common/sanitizer_quarantine.h
+++ b/lib/sanitizer_common/sanitizer_quarantine.h
@@ -26,13 +26,15 @@ namespace __sanitizer {
template<typename Node> class QuarantineCache;
struct QuarantineBatch {
- static const uptr kSize = 1024;
+ static const uptr kSize = 1021;
QuarantineBatch *next;
uptr size;
uptr count;
void *batch[kSize];
};
+COMPILER_CHECK(sizeof(QuarantineBatch) <= (1 << 13)); // 8Kb.
+
// The callback interface is:
// void Callback::Recycle(Node *ptr);
// void *cb.Allocate(uptr size);
@@ -123,8 +125,10 @@ class QuarantineCache {
}
void Enqueue(Callback cb, void *ptr, uptr size) {
- if (list_.empty() || list_.back()->count == QuarantineBatch::kSize)
+ if (list_.empty() || list_.back()->count == QuarantineBatch::kSize) {
AllocBatch(cb);
+ size += sizeof(QuarantineBatch); // Count the batch in Quarantine size.
+ }
QuarantineBatch *b = list_.back();
b->batch[b->count++] = ptr;
b->size += size;
@@ -147,7 +151,7 @@ class QuarantineCache {
return 0;
QuarantineBatch *b = list_.front();
list_.pop_front();
- SizeAdd(-b->size);
+ SizeSub(b->size);
return b;
}
@@ -158,6 +162,9 @@ class QuarantineCache {
void SizeAdd(uptr add) {
atomic_store(&size_, Size() + add, memory_order_relaxed);
}
+ void SizeSub(uptr sub) {
+ atomic_store(&size_, Size() - sub, memory_order_relaxed);
+ }
NOINLINE QuarantineBatch* AllocBatch(Callback cb) {
QuarantineBatch *b = (QuarantineBatch *)cb.Allocate(sizeof(*b));
diff --git a/lib/sanitizer_common/sanitizer_report_decorator.h b/lib/sanitizer_common/sanitizer_report_decorator.h
index 49334d5e0c71..eef2b15ccd34 100644
--- a/lib/sanitizer_common/sanitizer_report_decorator.h
+++ b/lib/sanitizer_common/sanitizer_report_decorator.h
@@ -19,6 +19,8 @@
namespace __sanitizer {
class AnsiColorDecorator {
+ // FIXME: This is not portable. It assumes the special strings are printed to
+ // stdout, which is not the case on Windows (see SetConsoleTextAttribute()).
public:
explicit AnsiColorDecorator(bool use_ansi_colors) : ansi_(use_ansi_colors) { }
const char *Bold() const { return ansi_ ? "\033[1m" : ""; }
diff --git a/lib/sanitizer_common/sanitizer_stackdepot.cc b/lib/sanitizer_common/sanitizer_stackdepot.cc
index 08e5238325e5..2793bd0714a1 100644
--- a/lib/sanitizer_common/sanitizer_stackdepot.cc
+++ b/lib/sanitizer_common/sanitizer_stackdepot.cc
@@ -201,4 +201,38 @@ const uptr *StackDepotGet(u32 id, uptr *size) {
return 0;
}
+bool StackDepotReverseMap::IdDescPair::IdComparator(
+ const StackDepotReverseMap::IdDescPair &a,
+ const StackDepotReverseMap::IdDescPair &b) {
+ return a.id < b.id;
+}
+
+StackDepotReverseMap::StackDepotReverseMap()
+ : map_(StackDepotGetStats()->n_uniq_ids + 100) {
+ for (int idx = 0; idx < kTabSize; idx++) {
+ atomic_uintptr_t *p = &depot.tab[idx];
+ uptr v = atomic_load(p, memory_order_consume);
+ StackDesc *s = (StackDesc*)(v & ~1);
+ for (; s; s = s->link) {
+ IdDescPair pair = {s->id, s};
+ map_.push_back(pair);
+ }
+ }
+ InternalSort(&map_, map_.size(), IdDescPair::IdComparator);
+}
+
+const uptr *StackDepotReverseMap::Get(u32 id, uptr *size) {
+ if (!map_.size()) return 0;
+ IdDescPair pair = {id, 0};
+ uptr idx = InternalBinarySearch(map_, 0, map_.size(), pair,
+ IdDescPair::IdComparator);
+ if (idx > map_.size()) {
+ *size = 0;
+ return 0;
+ }
+ StackDesc *desc = map_[idx].desc;
+ *size = desc->size;
+ return desc->stack;
+}
+
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_stackdepot.h b/lib/sanitizer_common/sanitizer_stackdepot.h
index 5915fdbb4310..4f77ff28eab1 100644
--- a/lib/sanitizer_common/sanitizer_stackdepot.h
+++ b/lib/sanitizer_common/sanitizer_stackdepot.h
@@ -13,6 +13,7 @@
#ifndef SANITIZER_STACKDEPOT_H
#define SANITIZER_STACKDEPOT_H
+#include "sanitizer_common.h"
#include "sanitizer_internal_defs.h"
namespace __sanitizer {
@@ -31,6 +32,31 @@ struct StackDepotStats {
StackDepotStats *StackDepotGetStats();
+struct StackDesc;
+
+// Instantiating this class creates a snapshot of StackDepot which can be
+// efficiently queried with StackDepotGet(). You can use it concurrently with
+// StackDepot, but the snapshot is only guaranteed to contain those stack traces
+// which were stored before it was instantiated.
+class StackDepotReverseMap {
+ public:
+ StackDepotReverseMap();
+ const uptr *Get(u32 id, uptr *size);
+
+ private:
+ struct IdDescPair {
+ u32 id;
+ StackDesc *desc;
+
+ static bool IdComparator(const IdDescPair &a, const IdDescPair &b);
+ };
+
+ InternalMmapVector<IdDescPair> map_;
+
+ // Disallow evil constructors.
+ StackDepotReverseMap(const StackDepotReverseMap&);
+ void operator=(const StackDepotReverseMap&);
+};
} // namespace __sanitizer
#endif // SANITIZER_STACKDEPOT_H
diff --git a/lib/sanitizer_common/sanitizer_stacktrace.cc b/lib/sanitizer_common/sanitizer_stacktrace.cc
index 724c29c86b66..70ce26bde0d2 100644
--- a/lib/sanitizer_common/sanitizer_stacktrace.cc
+++ b/lib/sanitizer_common/sanitizer_stacktrace.cc
@@ -12,20 +12,13 @@
//===----------------------------------------------------------------------===//
#include "sanitizer_common.h"
+#include "sanitizer_flags.h"
#include "sanitizer_procmaps.h"
#include "sanitizer_stacktrace.h"
#include "sanitizer_symbolizer.h"
namespace __sanitizer {
-const char *StripPathPrefix(const char *filepath,
- const char *strip_file_prefix) {
- if (filepath == 0) return 0;
- if (filepath == internal_strstr(filepath, strip_file_prefix))
- return filepath + internal_strlen(strip_file_prefix);
- return filepath;
-}
-// ----------------------- StackTrace ----------------------------- {{{1
uptr StackTrace::GetPreviousInstructionPc(uptr pc) {
#ifdef __arm__
// Cancel Thumb bit.
@@ -41,32 +34,21 @@ uptr StackTrace::GetPreviousInstructionPc(uptr pc) {
#endif
}
-static void PrintStackFramePrefix(uptr frame_num, uptr pc) {
- Printf(" #%zu 0x%zx", frame_num, pc);
-}
-
-static void PrintSourceLocation(const char *file, int line, int column,
- const char *strip_file_prefix) {
- CHECK(file);
- Printf(" %s", StripPathPrefix(file, strip_file_prefix));
- if (line > 0) {
- Printf(":%d", line);
- if (column > 0)
- Printf(":%d", column);
- }
-}
-
-static void PrintModuleAndOffset(const char *module, uptr offset,
- const char *strip_file_prefix) {
- Printf(" (%s+0x%zx)", StripPathPrefix(module, strip_file_prefix), offset);
+static void PrintStackFramePrefix(InternalScopedString *buffer, uptr frame_num,
+ uptr pc) {
+ buffer->append(" #%zu 0x%zx", frame_num, pc);
}
void StackTrace::PrintStack(const uptr *addr, uptr size,
- bool symbolize, const char *strip_file_prefix,
- SymbolizeCallback symbolize_callback ) {
+ SymbolizeCallback symbolize_callback) {
+ if (addr == 0) {
+ Printf("<empty stack>\n\n");
+ return;
+ }
MemoryMappingLayout proc_maps(/*cache_enabled*/true);
InternalScopedBuffer<char> buff(GetPageSizeCached() * 2);
InternalScopedBuffer<AddressInfo> addr_frames(64);
+ InternalScopedString frame_desc(GetPageSizeCached() * 2);
uptr frame_num = 0;
for (uptr i = 0; i < size && addr[i]; i++) {
// PCs in stack traces are actually the return addresses, that is,
@@ -77,50 +59,60 @@ void StackTrace::PrintStack(const uptr *addr, uptr size,
if (symbolize_callback) {
if (symbolize_callback((void*)pc, buff.data(), buff.size())) {
addr_frames_num = 1;
- PrintStackFramePrefix(frame_num, pc);
+ frame_desc.clear();
+ PrintStackFramePrefix(&frame_desc, frame_num, pc);
// We can't know anything about the string returned by external
// symbolizer, but if it starts with filename, try to strip path prefix
// from it.
- Printf(" %s\n", StripPathPrefix(buff.data(), strip_file_prefix));
+ frame_desc.append(
+ " %s",
+ StripPathPrefix(buff.data(), common_flags()->strip_path_prefix));
+ Printf("%s\n", frame_desc.data());
frame_num++;
}
}
- if (symbolize && addr_frames_num == 0 && &SymbolizeCode) {
+ if (common_flags()->symbolize && addr_frames_num == 0) {
// Use our own (online) symbolizer, if necessary.
- addr_frames_num = SymbolizeCode(pc, addr_frames.data(),
- addr_frames.size());
+ if (Symbolizer *sym = Symbolizer::GetOrNull())
+ addr_frames_num =
+ sym->SymbolizeCode(pc, addr_frames.data(), addr_frames.size());
for (uptr j = 0; j < addr_frames_num; j++) {
AddressInfo &info = addr_frames[j];
- PrintStackFramePrefix(frame_num, pc);
+ frame_desc.clear();
+ PrintStackFramePrefix(&frame_desc, frame_num, pc);
if (info.function) {
- Printf(" in %s", info.function);
+ frame_desc.append(" in %s", info.function);
}
if (info.file) {
- PrintSourceLocation(info.file, info.line, info.column,
- strip_file_prefix);
+ frame_desc.append(" ");
+ PrintSourceLocation(&frame_desc, info.file, info.line, info.column);
} else if (info.module) {
- PrintModuleAndOffset(info.module, info.module_offset,
- strip_file_prefix);
+ frame_desc.append(" ");
+ PrintModuleAndOffset(&frame_desc, info.module, info.module_offset);
}
- Printf("\n");
- info.Clear();
+ Printf("%s\n", frame_desc.data());
frame_num++;
+ info.Clear();
}
}
if (addr_frames_num == 0) {
// If online symbolization failed, try to output at least module and
// offset for instruction.
- PrintStackFramePrefix(frame_num, pc);
+ frame_desc.clear();
+ PrintStackFramePrefix(&frame_desc, frame_num, pc);
uptr offset;
if (proc_maps.GetObjectNameAndOffset(pc, &offset,
buff.data(), buff.size(),
/* protection */0)) {
- PrintModuleAndOffset(buff.data(), offset, strip_file_prefix);
+ frame_desc.append(" ");
+ PrintModuleAndOffset(&frame_desc, buff.data(), offset);
}
- Printf("\n");
+ Printf("%s\n", frame_desc.data());
frame_num++;
}
}
+ // Always print a trailing empty line after stack trace.
+ Printf("\n");
}
uptr StackTrace::GetCurrentPc() {
@@ -128,17 +120,23 @@ uptr StackTrace::GetCurrentPc() {
}
void StackTrace::FastUnwindStack(uptr pc, uptr bp,
- uptr stack_top, uptr stack_bottom) {
- CHECK(size == 0 && trace[0] == pc);
+ uptr stack_top, uptr stack_bottom,
+ uptr max_depth) {
+ if (max_depth == 0) {
+ size = 0;
+ return;
+ }
+ trace[0] = pc;
size = 1;
uhwptr *frame = (uhwptr *)bp;
uhwptr *prev_frame = frame - 1;
+ if (stack_top < 4096) return; // Sanity check for stack top.
// Avoid infinite loop when frame == frame[0] by using frame > prev_frame.
while (frame > prev_frame &&
frame < (uhwptr *)stack_top - 2 &&
frame > (uhwptr *)stack_bottom &&
IsAligned((uptr)frame, sizeof(*frame)) &&
- size < max_size) {
+ size < max_depth) {
uhwptr pc1 = frame[1];
if (pc1 != pc) {
trace[size++] = (uptr) pc1;
@@ -156,111 +154,19 @@ void StackTrace::PopStackFrames(uptr count) {
}
}
-// On 32-bits we don't compress stack traces.
-// On 64-bits we compress stack traces: if a given pc differes slightly from
-// the previous one, we record a 31-bit offset instead of the full pc.
-SANITIZER_INTERFACE_ATTRIBUTE
-uptr StackTrace::CompressStack(StackTrace *stack, u32 *compressed, uptr size) {
-#if SANITIZER_WORDSIZE == 32
- // Don't compress, just copy.
- uptr res = 0;
- for (uptr i = 0; i < stack->size && i < size; i++) {
- compressed[i] = stack->trace[i];
- res++;
- }
- if (stack->size < size)
- compressed[stack->size] = 0;
-#else // 64 bits, compress.
- uptr prev_pc = 0;
- const uptr kMaxOffset = (1ULL << 30) - 1;
- uptr c_index = 0;
- uptr res = 0;
- for (uptr i = 0, n = stack->size; i < n; i++) {
- uptr pc = stack->trace[i];
- if (!pc) break;
- if ((s64)pc < 0) break;
- // Printf("C pc[%zu] %zx\n", i, pc);
- if (prev_pc - pc < kMaxOffset || pc - prev_pc < kMaxOffset) {
- uptr offset = (s64)(pc - prev_pc);
- offset |= (1U << 31);
- if (c_index >= size) break;
- // Printf("C co[%zu] offset %zx\n", i, offset);
- compressed[c_index++] = offset;
- } else {
- uptr hi = pc >> 32;
- uptr lo = (pc << 32) >> 32;
- CHECK_EQ((hi & (1 << 31)), 0);
- if (c_index + 1 >= size) break;
- // Printf("C co[%zu] hi/lo: %zx %zx\n", c_index, hi, lo);
- compressed[c_index++] = hi;
- compressed[c_index++] = lo;
- }
- res++;
- prev_pc = pc;
- }
- if (c_index < size)
- compressed[c_index] = 0;
- if (c_index + 1 < size)
- compressed[c_index + 1] = 0;
-#endif // SANITIZER_WORDSIZE
-
- // debug-only code
-#if 0
- StackTrace check_stack;
- UncompressStack(&check_stack, compressed, size);
- if (res < check_stack.size) {
- Printf("res %zu check_stack.size %zu; c_size %zu\n", res,
- check_stack.size, size);
- }
- // |res| may be greater than check_stack.size, because
- // UncompressStack(CompressStack(stack)) eliminates the 0x0 frames.
- CHECK(res >= check_stack.size);
- CHECK_EQ(0, REAL(memcmp)(check_stack.trace, stack->trace,
- check_stack.size * sizeof(uptr)));
-#endif
-
- return res;
+static bool MatchPc(uptr cur_pc, uptr trace_pc, uptr threshold) {
+ return cur_pc - trace_pc <= threshold || trace_pc - cur_pc <= threshold;
}
-SANITIZER_INTERFACE_ATTRIBUTE
-void StackTrace::UncompressStack(StackTrace *stack,
- u32 *compressed, uptr size) {
-#if SANITIZER_WORDSIZE == 32
- // Don't uncompress, just copy.
- stack->size = 0;
- for (uptr i = 0; i < size && i < kStackTraceMax; i++) {
- if (!compressed[i]) break;
- stack->size++;
- stack->trace[i] = compressed[i];
- }
-#else // 64 bits, uncompress
- uptr prev_pc = 0;
- stack->size = 0;
- for (uptr i = 0; i < size && stack->size < kStackTraceMax; i++) {
- u32 x = compressed[i];
- uptr pc = 0;
- if (x & (1U << 31)) {
- // Printf("U co[%zu] offset: %x\n", i, x);
- // this is an offset
- s32 offset = x;
- offset = (offset << 1) >> 1; // remove the 31-byte and sign-extend.
- pc = prev_pc + offset;
- CHECK(pc);
- } else {
- // CHECK(i + 1 < size);
- if (i + 1 >= size) break;
- uptr hi = x;
- uptr lo = compressed[i+1];
- // Printf("U co[%zu] hi/lo: %zx %zx\n", i, hi, lo);
- i++;
- pc = (hi << 32) | lo;
- if (!pc) break;
- }
- // Printf("U pc[%zu] %zx\n", stack->size, pc);
- stack->trace[stack->size++] = pc;
- prev_pc = pc;
+uptr StackTrace::LocatePcInTrace(uptr pc) {
+ // Use threshold to find PC in stack trace, as PC we want to unwind from may
+ // slightly differ from return address in the actual unwinded stack trace.
+ const int kPcThreshold = 96;
+ for (uptr i = 0; i < size; ++i) {
+ if (MatchPc(pc, trace[i], kPcThreshold))
+ return i;
}
-#endif // SANITIZER_WORDSIZE
+ return 0;
}
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_stacktrace.h b/lib/sanitizer_common/sanitizer_stacktrace.h
index fcfdd7e0b59b..5042f230188a 100644
--- a/lib/sanitizer_common/sanitizer_stacktrace.h
+++ b/lib/sanitizer_common/sanitizer_stacktrace.h
@@ -21,57 +21,57 @@ static const uptr kStackTraceMax = 256;
#if SANITIZER_LINUX && (defined(__arm__) || \
defined(__powerpc__) || defined(__powerpc64__) || \
- defined(__sparc__))
-#define SANITIZER_CAN_FAST_UNWIND 0
+ defined(__sparc__) || \
+ defined(__mips__))
+# define SANITIZER_CAN_FAST_UNWIND 0
+#elif SANITIZER_WINDOWS
+# define SANITIZER_CAN_FAST_UNWIND 0
#else
-#define SANITIZER_CAN_FAST_UNWIND 1
+# define SANITIZER_CAN_FAST_UNWIND 1
#endif
struct StackTrace {
typedef bool (*SymbolizeCallback)(const void *pc, char *out_buffer,
int out_size);
+ uptr top_frame_bp;
uptr size;
- uptr max_size;
uptr trace[kStackTraceMax];
+
+ // Prints a symbolized stacktrace, followed by an empty line.
static void PrintStack(const uptr *addr, uptr size,
- bool symbolize, const char *strip_file_prefix,
- SymbolizeCallback symbolize_callback);
- void CopyTo(uptr *dst, uptr dst_size) {
- for (uptr i = 0; i < size && i < dst_size; i++)
- dst[i] = trace[i];
- for (uptr i = size; i < dst_size; i++)
- dst[i] = 0;
- }
+ SymbolizeCallback symbolize_callback = 0);
- void CopyFrom(uptr *src, uptr src_size) {
+ void CopyFrom(const uptr *src, uptr src_size) {
+ top_frame_bp = 0;
size = src_size;
if (size > kStackTraceMax) size = kStackTraceMax;
- for (uptr i = 0; i < size; i++) {
+ for (uptr i = 0; i < size; i++)
trace[i] = src[i];
- }
}
- void FastUnwindStack(uptr pc, uptr bp, uptr stack_top, uptr stack_bottom);
- void SlowUnwindStack(uptr pc, uptr max_depth);
+ static bool WillUseFastUnwind(bool request_fast_unwind) {
+ // Check if fast unwind is available. Fast unwind is the only option on Mac.
+ if (!SANITIZER_CAN_FAST_UNWIND)
+ return false;
+ else if (SANITIZER_MAC)
+ return true;
+ return request_fast_unwind;
+ }
- void PopStackFrames(uptr count);
+ void Unwind(uptr max_depth, uptr pc, uptr bp, uptr stack_top,
+ uptr stack_bottom, bool request_fast_unwind);
static uptr GetCurrentPc();
static uptr GetPreviousInstructionPc(uptr pc);
- static uptr CompressStack(StackTrace *stack,
- u32 *compressed, uptr size);
- static void UncompressStack(StackTrace *stack,
- u32 *compressed, uptr size);
+ private:
+ void FastUnwindStack(uptr pc, uptr bp, uptr stack_top, uptr stack_bottom,
+ uptr max_depth);
+ void SlowUnwindStack(uptr pc, uptr max_depth);
+ void PopStackFrames(uptr count);
+ uptr LocatePcInTrace(uptr pc);
};
-
-const char *StripPathPrefix(const char *filepath,
- const char *strip_file_prefix);
-
-void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp,
- uptr stack_top, uptr stack_bottom, bool fast);
-
} // namespace __sanitizer
// Use this macro if you want to print stack trace with the caller
diff --git a/lib/sanitizer_common/sanitizer_stacktrace_libcdep.cc b/lib/sanitizer_common/sanitizer_stacktrace_libcdep.cc
new file mode 100644
index 000000000000..58fa18251ecf
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_stacktrace_libcdep.cc
@@ -0,0 +1,28 @@
+//===-- sanitizer_stacktrace_libcdep.cc -----------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is shared between AddressSanitizer and ThreadSanitizer
+// run-time libraries.
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_stacktrace.h"
+
+namespace __sanitizer {
+
+void StackTrace::Unwind(uptr max_depth, uptr pc, uptr bp, uptr stack_top,
+ uptr stack_bottom, bool request_fast_unwind) {
+ if (!WillUseFastUnwind(request_fast_unwind))
+ SlowUnwindStack(pc, max_depth);
+ else
+ FastUnwindStack(pc, bp, stack_top, stack_bottom, max_depth);
+
+ top_frame_bp = size ? bp : 0;
+}
+
+} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_stoptheworld.h b/lib/sanitizer_common/sanitizer_stoptheworld.h
index cc9408bb845f..a32646708d45 100644
--- a/lib/sanitizer_common/sanitizer_stoptheworld.h
+++ b/lib/sanitizer_common/sanitizer_stoptheworld.h
@@ -46,7 +46,7 @@ class SuspendedThreadsList {
}
private:
- InternalVector<SuspendedThreadID> thread_ids_;
+ InternalMmapVector<SuspendedThreadID> thread_ids_;
// Prohibit copy and assign.
SuspendedThreadsList(const SuspendedThreadsList&);
diff --git a/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc b/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
index e5284ee2211a..a34ddd872209 100644
--- a/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
+++ b/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
@@ -14,12 +14,14 @@
#include "sanitizer_platform.h"
-#if SANITIZER_LINUX
+#if SANITIZER_LINUX && defined(__x86_64__)
#include "sanitizer_stoptheworld.h"
+#include "sanitizer_platform_limits_posix.h"
+
#include <errno.h>
-#include <sched.h> // for clone
+#include <sched.h> // for CLONE_* definitions
#include <stddef.h>
#include <sys/prctl.h> // for PR_* definitions
#include <sys/ptrace.h> // for PTRACE_* definitions
@@ -31,7 +33,16 @@
#endif
#include <sys/wait.h> // for signal-related stuff
+#ifdef sa_handler
+# undef sa_handler
+#endif
+
+#ifdef sa_sigaction
+# undef sa_sigaction
+#endif
+
#include "sanitizer_common.h"
+#include "sanitizer_flags.h"
#include "sanitizer_libc.h"
#include "sanitizer_linux.h"
#include "sanitizer_mutex.h"
@@ -47,31 +58,14 @@
// clone() interface (we want to share the address space with the caller
// process, so we prefer clone() over fork()).
//
-// We avoid the use of libc for two reasons:
+// We don't use any libc functions, relying instead on direct syscalls. There
+// are two reasons for this:
// 1. calling a library function while threads are suspended could cause a
// deadlock, if one of the treads happens to be holding a libc lock;
// 2. it's generally not safe to call libc functions from the tracer task,
// because clone() does not set up a thread-local storage for it. Any
// thread-local variables used by libc will be shared between the tracer task
// and the thread which spawned it.
-//
-// We deal with this by replacing libc calls with calls to our own
-// implementations defined in sanitizer_libc.h and sanitizer_linux.h. However,
-// there are still some libc functions which are used here:
-//
-// * All of the system calls ultimately go through the libc syscall() function.
-// We're operating under the assumption that syscall()'s implementation does
-// not acquire any locks or use any thread-local data (except for the errno
-// variable, which we handle separately).
-//
-// * We lack custom implementations of sigfillset() and sigaction(), so we use
-// the libc versions instead. The same assumptions as above apply.
-//
-// * It is safe to call libc functions before the cloned thread is spawned or
-// after it has exited. The following functions are used in this manner:
-// sigdelset()
-// sigprocmask()
-// clone()
COMPILER_CHECK(sizeof(SuspendedThreadID) == sizeof(pid_t));
@@ -106,10 +100,11 @@ bool ThreadSuspender::SuspendThread(SuspendedThreadID thread_id) {
&pterrno)) {
// Either the thread is dead, or something prevented us from attaching.
// Log this event and move on.
- Report("Could not attach to thread %d (errno %d).\n", thread_id, pterrno);
+ if (common_flags()->verbosity)
+ Report("Could not attach to thread %d (errno %d).\n", thread_id, pterrno);
return false;
} else {
- if (SanitizerVerbosity > 0)
+ if (common_flags()->verbosity)
Report("Attached to thread %d.\n", thread_id);
// The thread is not guaranteed to stop before ptrace returns, so we must
// wait on it.
@@ -119,8 +114,9 @@ bool ThreadSuspender::SuspendThread(SuspendedThreadID thread_id) {
if (internal_iserror(waitpid_status, &wperrno)) {
// Got a ECHILD error. I don't think this situation is possible, but it
// doesn't hurt to report it.
- Report("Waiting on thread %d failed, detaching (errno %d).\n", thread_id,
- wperrno);
+ if (common_flags()->verbosity)
+ Report("Waiting on thread %d failed, detaching (errno %d).\n",
+ thread_id, wperrno);
internal_ptrace(PTRACE_DETACH, thread_id, NULL, NULL);
return false;
}
@@ -135,13 +131,14 @@ void ThreadSuspender::ResumeAllThreads() {
int pterrno;
if (!internal_iserror(internal_ptrace(PTRACE_DETACH, tid, NULL, NULL),
&pterrno)) {
- if (SanitizerVerbosity > 0)
+ if (common_flags()->verbosity)
Report("Detached from thread %d.\n", tid);
} else {
// Either the thread is dead, or we are already detached.
// The latter case is possible, for instance, if this function was called
// from a signal handler.
- Report("Could not detach from thread %d (errno %d).\n", tid, pterrno);
+ if (common_flags()->verbosity)
+ Report("Could not detach from thread %d (errno %d).\n", tid, pterrno);
}
}
}
@@ -186,13 +183,16 @@ static const int kUnblockedSignals[] = { SIGABRT, SIGILL, SIGFPE, SIGSEGV,
struct TracerThreadArgument {
StopTheWorldCallback callback;
void *callback_argument;
- // The tracer thread waits on this mutex while the parent finished its
+ // The tracer thread waits on this mutex while the parent finishes its
// preparations.
BlockingMutex mutex;
+ uptr parent_pid;
};
+static DieCallbackType old_die_callback;
+
// Signal handler to wake up suspended threads when the tracer thread dies.
-void TracerThreadSignalHandler(int signum, siginfo_t *siginfo, void *) {
+void TracerThreadSignalHandler(int signum, void *siginfo, void *) {
if (thread_suspender_instance != NULL) {
if (signum == SIGABRT)
thread_suspender_instance->KillAllThreads();
@@ -202,6 +202,19 @@ void TracerThreadSignalHandler(int signum, siginfo_t *siginfo, void *) {
internal__exit((signum == SIGABRT) ? 1 : 2);
}
+static void TracerThreadDieCallback() {
+ // Generally a call to Die() in the tracer thread should be fatal to the
+ // parent process as well, because they share the address space.
+ // This really only works correctly if all the threads are suspended at this
+ // point. So we correctly handle calls to Die() from within the callback, but
+ // not those that happen before or after the callback. Hopefully there aren't
+ // a lot of opportunities for that to happen...
+ if (thread_suspender_instance)
+ thread_suspender_instance->KillAllThreads();
+ if (old_die_callback)
+ old_die_callback();
+}
+
// Size of alternative stack for signal handlers in the tracer thread.
static const int kHandlerStackSize = 4096;
@@ -210,10 +223,17 @@ static int TracerThread(void* argument) {
TracerThreadArgument *tracer_thread_argument =
(TracerThreadArgument *)argument;
+ internal_prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
+ // Check if parent is already dead.
+ if (internal_getppid() != tracer_thread_argument->parent_pid)
+ internal__exit(4);
+
// Wait for the parent thread to finish preparations.
tracer_thread_argument->mutex.Lock();
tracer_thread_argument->mutex.Unlock();
+ SetDieCallback(TracerThreadDieCallback);
+
ThreadSuspender thread_suspender(internal_getppid());
// Global pointer for the signal handler.
thread_suspender_instance = &thread_suspender;
@@ -230,17 +250,18 @@ static int TracerThread(void* argument) {
// the mask we inherited from the caller thread.
for (uptr signal_index = 0; signal_index < ARRAY_SIZE(kUnblockedSignals);
signal_index++) {
- struct sigaction new_sigaction;
+ __sanitizer_kernel_sigaction_t new_sigaction;
internal_memset(&new_sigaction, 0, sizeof(new_sigaction));
- new_sigaction.sa_sigaction = TracerThreadSignalHandler;
+ new_sigaction.sigaction = TracerThreadSignalHandler;
new_sigaction.sa_flags = SA_ONSTACK | SA_SIGINFO;
- sigfillset(&new_sigaction.sa_mask);
- sigaction(kUnblockedSignals[signal_index], &new_sigaction, NULL);
+ internal_sigfillset(&new_sigaction.sa_mask);
+ internal_sigaction(kUnblockedSignals[signal_index], &new_sigaction, NULL);
}
int exit_code = 0;
if (!thread_suspender.SuspendAllThreads()) {
- Report("Failed suspending threads.\n");
+ if (common_flags()->verbosity)
+ Report("Failed suspending threads.\n");
exit_code = 3;
} else {
tracer_thread_argument->callback(thread_suspender.suspended_threads_list(),
@@ -278,50 +299,84 @@ class ScopedStackSpaceWithGuard {
uptr guard_start_;
};
-static sigset_t blocked_sigset;
-static sigset_t old_sigset;
-static struct sigaction old_sigactions[ARRAY_SIZE(kUnblockedSignals)];
+// We have a limitation on the stack frame size, so some stuff had to be moved
+// into globals.
+static __sanitizer_kernel_sigset_t blocked_sigset;
+static __sanitizer_kernel_sigset_t old_sigset;
+static __sanitizer_kernel_sigaction_t old_sigactions
+ [ARRAY_SIZE(kUnblockedSignals)];
-void StopTheWorld(StopTheWorldCallback callback, void *argument) {
- // Block all signals that can be blocked safely, and install default handlers
- // for the remaining signals.
- // We cannot allow user-defined handlers to run while the ThreadSuspender
- // thread is active, because they could conceivably call some libc functions
- // which modify errno (which is shared between the two threads).
- sigfillset(&blocked_sigset);
- for (uptr signal_index = 0; signal_index < ARRAY_SIZE(kUnblockedSignals);
- signal_index++) {
- // Remove the signal from the set of blocked signals.
- sigdelset(&blocked_sigset, kUnblockedSignals[signal_index]);
- // Install the default handler.
- struct sigaction new_sigaction;
- internal_memset(&new_sigaction, 0, sizeof(new_sigaction));
- new_sigaction.sa_handler = SIG_DFL;
- sigfillset(&new_sigaction.sa_mask);
- sigaction(kUnblockedSignals[signal_index], &new_sigaction,
- &old_sigactions[signal_index]);
+class StopTheWorldScope {
+ public:
+ StopTheWorldScope() {
+ // Block all signals that can be blocked safely, and install
+ // default handlers for the remaining signals.
+ // We cannot allow user-defined handlers to run while the ThreadSuspender
+ // thread is active, because they could conceivably call some libc functions
+ // which modify errno (which is shared between the two threads).
+ internal_sigfillset(&blocked_sigset);
+ for (uptr signal_index = 0; signal_index < ARRAY_SIZE(kUnblockedSignals);
+ signal_index++) {
+ // Remove the signal from the set of blocked signals.
+ internal_sigdelset(&blocked_sigset, kUnblockedSignals[signal_index]);
+ // Install the default handler.
+ __sanitizer_kernel_sigaction_t new_sigaction;
+ internal_memset(&new_sigaction, 0, sizeof(new_sigaction));
+ new_sigaction.handler = SIG_DFL;
+ internal_sigfillset(&new_sigaction.sa_mask);
+ internal_sigaction(kUnblockedSignals[signal_index], &new_sigaction,
+ &old_sigactions[signal_index]);
+ }
+ int sigprocmask_status =
+ internal_sigprocmask(SIG_BLOCK, &blocked_sigset, &old_sigset);
+ CHECK_EQ(sigprocmask_status, 0); // sigprocmask should never fail
+ // Make this process dumpable. Processes that are not dumpable cannot be
+ // attached to.
+ process_was_dumpable_ = internal_prctl(PR_GET_DUMPABLE, 0, 0, 0, 0);
+ if (!process_was_dumpable_)
+ internal_prctl(PR_SET_DUMPABLE, 1, 0, 0, 0);
+ old_die_callback = GetDieCallback();
}
- int sigprocmask_status = sigprocmask(SIG_BLOCK, &blocked_sigset, &old_sigset);
- CHECK_EQ(sigprocmask_status, 0); // sigprocmask should never fail
- // Make this process dumpable. Processes that are not dumpable cannot be
- // attached to.
- int process_was_dumpable = internal_prctl(PR_GET_DUMPABLE, 0, 0, 0, 0);
- if (!process_was_dumpable)
- internal_prctl(PR_SET_DUMPABLE, 1, 0, 0, 0);
+
+ ~StopTheWorldScope() {
+ SetDieCallback(old_die_callback);
+ // Restore the dumpable flag.
+ if (!process_was_dumpable_)
+ internal_prctl(PR_SET_DUMPABLE, 0, 0, 0, 0);
+ // Restore the signal handlers.
+ for (uptr signal_index = 0; signal_index < ARRAY_SIZE(kUnblockedSignals);
+ signal_index++) {
+ internal_sigaction(kUnblockedSignals[signal_index],
+ &old_sigactions[signal_index], NULL);
+ }
+ internal_sigprocmask(SIG_SETMASK, &old_sigset, &old_sigset);
+ }
+
+ private:
+ int process_was_dumpable_;
+};
+
+void StopTheWorld(StopTheWorldCallback callback, void *argument) {
+ StopTheWorldScope in_stoptheworld;
// Prepare the arguments for TracerThread.
struct TracerThreadArgument tracer_thread_argument;
tracer_thread_argument.callback = callback;
tracer_thread_argument.callback_argument = argument;
+ tracer_thread_argument.parent_pid = internal_getpid();
const uptr kTracerStackSize = 2 * 1024 * 1024;
ScopedStackSpaceWithGuard tracer_stack(kTracerStackSize);
// Block the execution of TracerThread until after we have set ptrace
// permissions.
tracer_thread_argument.mutex.Lock();
- pid_t tracer_pid = clone(TracerThread, tracer_stack.Bottom(),
- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_UNTRACED,
- &tracer_thread_argument, 0, 0, 0);
- if (tracer_pid < 0) {
- Report("Failed spawning a tracer thread (errno %d).\n", errno);
+ uptr tracer_pid = internal_clone(
+ TracerThread, tracer_stack.Bottom(),
+ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_UNTRACED,
+ &tracer_thread_argument, 0 /* parent_tidptr */, 0 /* newtls */, 0
+ /* child_tidptr */);
+ int local_errno = 0;
+ if (internal_iserror(tracer_pid, &local_errno)) {
+ if (common_flags()->verbosity)
+ Report("Failed spawning a tracer thread (errno %d).\n", local_errno);
tracer_thread_argument.mutex.Unlock();
} else {
// On some systems we have to explicitly declare that we want to be traced
@@ -336,20 +391,12 @@ void StopTheWorld(StopTheWorldCallback callback, void *argument) {
// At this point, any signal will either be blocked or kill us, so waitpid
// should never return (and set errno) while the tracer thread is alive.
uptr waitpid_status = internal_waitpid(tracer_pid, NULL, __WALL);
- int wperrno;
- if (internal_iserror(waitpid_status, &wperrno))
- Report("Waiting on the tracer thread failed (errno %d).\n", wperrno);
- }
- // Restore the dumpable flag.
- if (!process_was_dumpable)
- internal_prctl(PR_SET_DUMPABLE, 0, 0, 0, 0);
- // Restore the signal handlers.
- for (uptr signal_index = 0; signal_index < ARRAY_SIZE(kUnblockedSignals);
- signal_index++) {
- sigaction(kUnblockedSignals[signal_index],
- &old_sigactions[signal_index], NULL);
+ if (internal_iserror(waitpid_status, &local_errno)) {
+ if (common_flags()->verbosity)
+ Report("Waiting on the tracer thread failed (errno %d).\n",
+ local_errno);
+ }
}
- sigprocmask(SIG_SETMASK, &old_sigset, &old_sigset);
}
// Platform-specific methods from SuspendedThreadsList.
@@ -373,6 +420,10 @@ typedef user_regs_struct regs_struct;
typedef pt_regs regs_struct;
#define REG_SP gpr[PT_R1]
+#elif defined(__mips__)
+typedef struct user regs_struct;
+#define REG_SP regs[EF_REG29]
+
#else
#error "Unsupported architecture"
#endif // SANITIZER_ANDROID && defined(__arm__)
@@ -385,7 +436,8 @@ int SuspendedThreadsList::GetRegistersAndSP(uptr index,
int pterrno;
if (internal_iserror(internal_ptrace(PTRACE_GETREGS, tid, NULL, &regs),
&pterrno)) {
- Report("Could not get registers from thread %d (errno %d).\n",
+ if (common_flags()->verbosity)
+ Report("Could not get registers from thread %d (errno %d).\n",
tid, pterrno);
return -1;
}
@@ -400,4 +452,4 @@ uptr SuspendedThreadsList::RegisterCount() {
}
} // namespace __sanitizer
-#endif // SANITIZER_LINUX
+#endif // SANITIZER_LINUX && defined(__x86_64__)
diff --git a/lib/sanitizer_common/sanitizer_suppressions.cc b/lib/sanitizer_common/sanitizer_suppressions.cc
new file mode 100644
index 000000000000..5f3d2cee8cef
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_suppressions.cc
@@ -0,0 +1,153 @@
+//===-- sanitizer_suppressions.cc -----------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Suppression parsing/matching code shared between TSan and LSan.
+//
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_suppressions.h"
+
+#include "sanitizer_allocator_internal.h"
+#include "sanitizer_common.h"
+#include "sanitizer_libc.h"
+
+namespace __sanitizer {
+
+static const char *const kTypeStrings[SuppressionTypeCount] = {
+ "none", "race", "mutex", "thread", "signal", "leak", "called_from_lib"
+};
+
+bool TemplateMatch(char *templ, const char *str) {
+ if (str == 0 || str[0] == 0)
+ return false;
+ bool start = false;
+ if (templ && templ[0] == '^') {
+ start = true;
+ templ++;
+ }
+ bool asterisk = false;
+ while (templ && templ[0]) {
+ if (templ[0] == '*') {
+ templ++;
+ start = false;
+ asterisk = true;
+ continue;
+ }
+ if (templ[0] == '$')
+ return str[0] == 0 || asterisk;
+ if (str[0] == 0)
+ return false;
+ char *tpos = (char*)internal_strchr(templ, '*');
+ char *tpos1 = (char*)internal_strchr(templ, '$');
+ if (tpos == 0 || (tpos1 && tpos1 < tpos))
+ tpos = tpos1;
+ if (tpos != 0)
+ tpos[0] = 0;
+ const char *str0 = str;
+ const char *spos = internal_strstr(str, templ);
+ str = spos + internal_strlen(templ);
+ templ = tpos;
+ if (tpos)
+ tpos[0] = tpos == tpos1 ? '$' : '*';
+ if (spos == 0)
+ return false;
+ if (start && spos != str0)
+ return false;
+ start = false;
+ asterisk = false;
+ }
+ return true;
+}
+
+bool SuppressionContext::Match(const char *str, SuppressionType type,
+ Suppression **s) {
+ can_parse_ = false;
+ uptr i;
+ for (i = 0; i < suppressions_.size(); i++)
+ if (type == suppressions_[i].type &&
+ TemplateMatch(suppressions_[i].templ, str))
+ break;
+ if (i == suppressions_.size()) return false;
+ *s = &suppressions_[i];
+ return true;
+}
+
+static const char *StripPrefix(const char *str, const char *prefix) {
+ while (str && *str == *prefix) {
+ str++;
+ prefix++;
+ }
+ if (!*prefix)
+ return str;
+ return 0;
+}
+
+void SuppressionContext::Parse(const char *str) {
+ // Context must not mutate once Match has been called.
+ CHECK(can_parse_);
+ const char *line = str;
+ while (line) {
+ while (line[0] == ' ' || line[0] == '\t')
+ line++;
+ const char *end = internal_strchr(line, '\n');
+ if (end == 0)
+ end = line + internal_strlen(line);
+ if (line != end && line[0] != '#') {
+ const char *end2 = end;
+ while (line != end2 && (end2[-1] == ' ' || end2[-1] == '\t'))
+ end2--;
+ int type;
+ for (type = 0; type < SuppressionTypeCount; type++) {
+ const char *next_char = StripPrefix(line, kTypeStrings[type]);
+ if (next_char && *next_char == ':') {
+ line = ++next_char;
+ break;
+ }
+ }
+ if (type == SuppressionTypeCount) {
+ Printf("%s: failed to parse suppressions\n", SanitizerToolName);
+ Die();
+ }
+ Suppression s;
+ s.type = static_cast<SuppressionType>(type);
+ s.templ = (char*)InternalAlloc(end2 - line + 1);
+ internal_memcpy(s.templ, line, end2 - line);
+ s.templ[end2 - line] = 0;
+ s.hit_count = 0;
+ s.weight = 0;
+ suppressions_.push_back(s);
+ }
+ if (end[0] == 0)
+ break;
+ line = end + 1;
+ }
+}
+
+uptr SuppressionContext::SuppressionCount() const {
+ return suppressions_.size();
+}
+
+const Suppression *SuppressionContext::SuppressionAt(uptr i) const {
+ CHECK_LT(i, suppressions_.size());
+ return &suppressions_[i];
+}
+
+void SuppressionContext::GetMatched(
+ InternalMmapVector<Suppression *> *matched) {
+ for (uptr i = 0; i < suppressions_.size(); i++)
+ if (suppressions_[i].hit_count)
+ matched->push_back(&suppressions_[i]);
+}
+
+const char *SuppressionTypeString(SuppressionType t) {
+ CHECK(t < SuppressionTypeCount);
+ return kTypeStrings[t];
+}
+
+} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_suppressions.h b/lib/sanitizer_common/sanitizer_suppressions.h
new file mode 100644
index 000000000000..92cb09365b5e
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_suppressions.h
@@ -0,0 +1,61 @@
+//===-- sanitizer_suppressions.h --------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Suppression parsing/matching code shared between TSan and LSan.
+//
+//===----------------------------------------------------------------------===//
+#ifndef SANITIZER_SUPPRESSIONS_H
+#define SANITIZER_SUPPRESSIONS_H
+
+#include "sanitizer_common.h"
+#include "sanitizer_internal_defs.h"
+
+namespace __sanitizer {
+
+enum SuppressionType {
+ SuppressionNone,
+ SuppressionRace,
+ SuppressionMutex,
+ SuppressionThread,
+ SuppressionSignal,
+ SuppressionLeak,
+ SuppressionLib,
+ SuppressionTypeCount
+};
+
+struct Suppression {
+ SuppressionType type;
+ char *templ;
+ unsigned hit_count;
+ uptr weight;
+};
+
+class SuppressionContext {
+ public:
+ SuppressionContext() : suppressions_(1), can_parse_(true) {}
+ void Parse(const char *str);
+ bool Match(const char* str, SuppressionType type, Suppression **s);
+ uptr SuppressionCount() const;
+ const Suppression *SuppressionAt(uptr i) const;
+ void GetMatched(InternalMmapVector<Suppression *> *matched);
+
+ private:
+ InternalMmapVector<Suppression> suppressions_;
+ bool can_parse_;
+
+ friend class SuppressionContextTest;
+};
+
+const char *SuppressionTypeString(SuppressionType t);
+
+bool TemplateMatch(char *templ, const char *str);
+
+} // namespace __sanitizer
+
+#endif // SANITIZER_SUPPRESSIONS_H
diff --git a/lib/sanitizer_common/sanitizer_symbolizer.cc b/lib/sanitizer_common/sanitizer_symbolizer.cc
new file mode 100644
index 000000000000..2290767b0930
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_symbolizer.cc
@@ -0,0 +1,63 @@
+//===-- sanitizer_symbolizer.cc -------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is shared between AddressSanitizer and ThreadSanitizer
+// run-time libraries.
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_platform.h"
+#include "sanitizer_internal_defs.h"
+#include "sanitizer_placement_new.h"
+#include "sanitizer_symbolizer.h"
+
+namespace __sanitizer {
+
+Symbolizer *Symbolizer::symbolizer_;
+StaticSpinMutex Symbolizer::init_mu_;
+LowLevelAllocator Symbolizer::symbolizer_allocator_;
+
+Symbolizer *Symbolizer::GetOrNull() {
+ SpinMutexLock l(&init_mu_);
+ return symbolizer_;
+}
+
+Symbolizer *Symbolizer::Get() {
+ SpinMutexLock l(&init_mu_);
+ RAW_CHECK_MSG(symbolizer_ != 0, "Using uninitialized symbolizer!");
+ return symbolizer_;
+}
+
+Symbolizer *Symbolizer::Disable() {
+ CHECK_EQ(0, symbolizer_);
+ // Initialize a dummy symbolizer.
+ symbolizer_ = new(symbolizer_allocator_) Symbolizer;
+ return symbolizer_;
+}
+
+void Symbolizer::AddHooks(Symbolizer::StartSymbolizationHook start_hook,
+ Symbolizer::EndSymbolizationHook end_hook) {
+ CHECK(start_hook_ == 0 && end_hook_ == 0);
+ start_hook_ = start_hook;
+ end_hook_ = end_hook;
+}
+
+Symbolizer::Symbolizer() : start_hook_(0), end_hook_(0) {}
+
+Symbolizer::SymbolizerScope::SymbolizerScope(const Symbolizer *sym)
+ : sym_(sym) {
+ if (sym_->start_hook_)
+ sym_->start_hook_();
+}
+
+Symbolizer::SymbolizerScope::~SymbolizerScope() {
+ if (sym_->end_hook_)
+ sym_->end_hook_();
+}
+
+} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_symbolizer.h b/lib/sanitizer_common/sanitizer_symbolizer.h
index ef37fd387f98..886fed20db03 100644
--- a/lib/sanitizer_common/sanitizer_symbolizer.h
+++ b/lib/sanitizer_common/sanitizer_symbolizer.h
@@ -7,26 +7,21 @@
//
//===----------------------------------------------------------------------===//
//
-// Symbolizer is intended to be used by both
-// AddressSanitizer and ThreadSanitizer to symbolize a given
-// address. It is an analogue of addr2line utility and allows to map
-// instruction address to a location in source code at run-time.
+// Symbolizer is used by sanitizers to map instruction address to a location in
+// source code at run-time. Symbolizer either uses __sanitizer_symbolize_*
+// defined in the program, or (if they are missing) tries to find and
+// launch "llvm-symbolizer" commandline tool in a separate process and
+// communicate with it.
//
-// Symbolizer is planned to use debug information (in DWARF format)
-// in a binary via interface defined in "llvm/DebugInfo/DIContext.h"
-//
-// Symbolizer code should be called from the run-time library of
-// dynamic tools, and generally should not call memory allocation
-// routines or other system library functions intercepted by those tools.
-// Instead, Symbolizer code should use their replacements, defined in
-// "compiler-rt/lib/sanitizer_common/sanitizer_libc.h".
+// Generally we should try to avoid calling system library functions during
+// symbolization (and use their replacements from sanitizer_libc.h instead).
//===----------------------------------------------------------------------===//
#ifndef SANITIZER_SYMBOLIZER_H
#define SANITIZER_SYMBOLIZER_H
+#include "sanitizer_allocator_internal.h"
#include "sanitizer_internal_defs.h"
#include "sanitizer_libc.h"
-// WARNING: Do not include system headers here. See details above.
namespace __sanitizer {
@@ -42,8 +37,14 @@ struct AddressInfo {
AddressInfo() {
internal_memset(this, 0, sizeof(AddressInfo));
}
+
// Deletes all strings and sets all fields to zero.
- void Clear();
+ void Clear() {
+ InternalFree(module);
+ InternalFree(function);
+ InternalFree(file);
+ internal_memset(this, 0, sizeof(AddressInfo));
+ }
void FillAddressAndModuleInfo(uptr addr, const char *mod_name,
uptr mod_offset) {
@@ -62,60 +63,84 @@ struct DataInfo {
uptr size;
};
-// Fills at most "max_frames" elements of "frames" with descriptions
-// for a given address (in all inlined functions). Returns the number
-// of descriptions actually filled.
-// This function should NOT be called from two threads simultaneously.
-uptr SymbolizeCode(uptr address, AddressInfo *frames, uptr max_frames)
- SANITIZER_WEAK_ATTRIBUTE;
-bool SymbolizeData(uptr address, DataInfo *info);
-
-bool IsSymbolizerAvailable();
-void FlushSymbolizer(); // releases internal caches (if any)
-
-// Attempts to demangle the provided C++ mangled name.
-const char *Demangle(const char *Name);
-
-// Starts external symbolizer program in a subprocess. Sanitizer communicates
-// with external symbolizer via pipes.
-bool InitializeExternalSymbolizer(const char *path_to_symbolizer);
-
-class LoadedModule {
+class Symbolizer {
public:
- LoadedModule(const char *module_name, uptr base_address);
- void addAddressRange(uptr beg, uptr end);
- bool containsAddress(uptr address) const;
-
- const char *full_name() const { return full_name_; }
- uptr base_address() const { return base_address_; }
+ /// Returns platform-specific implementation of Symbolizer. The symbolizer
+ /// must be initialized (with init or disable) before calling this function.
+ static Symbolizer *Get();
+ /// Returns platform-specific implementation of Symbolizer, or null if not
+ /// initialized.
+ static Symbolizer *GetOrNull();
+ /// Returns platform-specific implementation of Symbolizer. Will
+ /// automatically initialize symbolizer as if by calling Init(0) if needed.
+ static Symbolizer *GetOrInit();
+ /// Initialize and return the symbolizer, given an optional path to an
+ /// external symbolizer. The path argument is only required for legacy
+ /// reasons as this function will check $PATH for an external symbolizer. Not
+ /// thread safe.
+ static Symbolizer *Init(const char* path_to_external = 0);
+ /// Initialize the symbolizer in a disabled state. Not thread safe.
+ static Symbolizer *Disable();
+ // Fills at most "max_frames" elements of "frames" with descriptions
+ // for a given address (in all inlined functions). Returns the number
+ // of descriptions actually filled.
+ virtual uptr SymbolizeCode(uptr address, AddressInfo *frames,
+ uptr max_frames) {
+ return 0;
+ }
+ virtual bool SymbolizeData(uptr address, DataInfo *info) {
+ return false;
+ }
+ virtual bool IsAvailable() {
+ return false;
+ }
+ virtual bool IsExternalAvailable() {
+ return false;
+ }
+ // Release internal caches (if any).
+ virtual void Flush() {}
+ // Attempts to demangle the provided C++ mangled name.
+ virtual const char *Demangle(const char *name) {
+ return name;
+ }
+ virtual void PrepareForSandboxing() {}
+
+ // Allow user to install hooks that would be called before/after Symbolizer
+ // does the actual file/line info fetching. Specific sanitizers may need this
+ // to distinguish system library calls made in user code from calls made
+ // during in-process symbolization.
+ typedef void (*StartSymbolizationHook)();
+ typedef void (*EndSymbolizationHook)();
+ // May be called at most once.
+ void AddHooks(StartSymbolizationHook start_hook,
+ EndSymbolizationHook end_hook);
private:
- struct AddressRange {
- uptr beg;
- uptr end;
+ /// Platform-specific function for creating a Symbolizer object.
+ static Symbolizer *PlatformInit(const char *path_to_external);
+ /// Create a symbolizer and store it to symbolizer_ without checking if one
+ /// already exists. Not thread safe.
+ static Symbolizer *CreateAndStore(const char *path_to_external);
+
+ static Symbolizer *symbolizer_;
+ static StaticSpinMutex init_mu_;
+
+ protected:
+ Symbolizer();
+
+ static LowLevelAllocator symbolizer_allocator_;
+
+ StartSymbolizationHook start_hook_;
+ EndSymbolizationHook end_hook_;
+ class SymbolizerScope {
+ public:
+ explicit SymbolizerScope(const Symbolizer *sym);
+ ~SymbolizerScope();
+ private:
+ const Symbolizer *sym_;
};
- char *full_name_;
- uptr base_address_;
- static const uptr kMaxNumberOfAddressRanges = 6;
- AddressRange ranges_[kMaxNumberOfAddressRanges];
- uptr n_ranges_;
};
-// Creates external symbolizer connected via pipe, user should write
-// to output_fd and read from input_fd.
-bool StartSymbolizerSubprocess(const char *path_to_symbolizer,
- int *input_fd, int *output_fd);
-
-// OS-dependent function that fills array with descriptions of at most
-// "max_modules" currently loaded modules. Returns the number of
-// initialized modules. If filter is nonzero, ignores modules for which
-// filter(full_name) is false.
-typedef bool (*string_predicate_t)(const char *);
-uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
- string_predicate_t filter);
-
-void SymbolizerPrepareForSandboxing();
-
} // namespace __sanitizer
#endif // SANITIZER_SYMBOLIZER_H
diff --git a/lib/sanitizer_common/sanitizer_symbolizer_itanium.cc b/lib/sanitizer_common/sanitizer_symbolizer_itanium.cc
deleted file mode 100644
index e20fb91f0eb5..000000000000
--- a/lib/sanitizer_common/sanitizer_symbolizer_itanium.cc
+++ /dev/null
@@ -1,44 +0,0 @@
-//===-- sanitizer_symbolizer_itanium.cc -----------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file is shared between the sanitizer run-time libraries.
-// Itanium C++ ABI-specific implementation of symbolizer parts.
-//===----------------------------------------------------------------------===//
-
-#include "sanitizer_platform.h"
-#if SANITIZER_MAC || SANITIZER_LINUX
-
-#include "sanitizer_symbolizer.h"
-
-#include <stdlib.h>
-
-// C++ demangling function, as required by Itanium C++ ABI. This is weak,
-// because we do not require a C++ ABI library to be linked to a program
-// using sanitizers; if it's not present, we'll just use the mangled name.
-namespace __cxxabiv1 {
- extern "C" char *__cxa_demangle(const char *mangled, char *buffer,
- size_t *length, int *status)
- SANITIZER_WEAK_ATTRIBUTE;
-}
-
-const char *__sanitizer::Demangle(const char *MangledName) {
- // FIXME: __cxa_demangle aggressively insists on allocating memory.
- // There's not much we can do about that, short of providing our
- // own demangler (libc++abi's implementation could be adapted so that
- // it does not allocate). For now, we just call it anyway, and we leak
- // the returned value.
- if (__cxxabiv1::__cxa_demangle)
- if (const char *Demangled =
- __cxxabiv1::__cxa_demangle(MangledName, 0, 0, 0))
- return Demangled;
-
- return MangledName;
-}
-
-#endif // SANITIZER_MAC || SANITIZER_LINUX
diff --git a/lib/sanitizer_common/sanitizer_symbolizer_libcdep.cc b/lib/sanitizer_common/sanitizer_symbolizer_libcdep.cc
index ad339e21a927..b431e51e24d6 100644
--- a/lib/sanitizer_common/sanitizer_symbolizer_libcdep.cc
+++ b/lib/sanitizer_common/sanitizer_symbolizer_libcdep.cc
@@ -8,446 +8,32 @@
//===----------------------------------------------------------------------===//
//
// This file is shared between AddressSanitizer and ThreadSanitizer
-// run-time libraries. See sanitizer_symbolizer.h for details.
+// run-time libraries.
//===----------------------------------------------------------------------===//
-#include "sanitizer_common.h"
-#include "sanitizer_placement_new.h"
-#include "sanitizer_procmaps.h"
+#include "sanitizer_internal_defs.h"
#include "sanitizer_symbolizer.h"
namespace __sanitizer {
-void AddressInfo::Clear() {
- InternalFree(module);
- InternalFree(function);
- InternalFree(file);
- internal_memset(this, 0, sizeof(AddressInfo));
+Symbolizer *Symbolizer::CreateAndStore(const char *path_to_external) {
+ Symbolizer *platform_symbolizer = PlatformInit(path_to_external);
+ if (!platform_symbolizer)
+ return Disable();
+ symbolizer_ = platform_symbolizer;
+ return platform_symbolizer;
}
-LoadedModule::LoadedModule(const char *module_name, uptr base_address) {
- full_name_ = internal_strdup(module_name);
- base_address_ = base_address;
- n_ranges_ = 0;
+Symbolizer *Symbolizer::Init(const char *path_to_external) {
+ CHECK_EQ(0, symbolizer_);
+ return CreateAndStore(path_to_external);
}
-void LoadedModule::addAddressRange(uptr beg, uptr end) {
- CHECK_LT(n_ranges_, kMaxNumberOfAddressRanges);
- ranges_[n_ranges_].beg = beg;
- ranges_[n_ranges_].end = end;
- n_ranges_++;
-}
-
-bool LoadedModule::containsAddress(uptr address) const {
- for (uptr i = 0; i < n_ranges_; i++) {
- if (ranges_[i].beg <= address && address < ranges_[i].end)
- return true;
- }
- return false;
-}
-
-// Extracts the prefix of "str" that consists of any characters not
-// present in "delims" string, and copies this prefix to "result", allocating
-// space for it.
-// Returns a pointer to "str" after skipping extracted prefix and first
-// delimiter char.
-static const char *ExtractToken(const char *str, const char *delims,
- char **result) {
- uptr prefix_len = internal_strcspn(str, delims);
- *result = (char*)InternalAlloc(prefix_len + 1);
- internal_memcpy(*result, str, prefix_len);
- (*result)[prefix_len] = '\0';
- const char *prefix_end = str + prefix_len;
- if (*prefix_end != '\0') prefix_end++;
- return prefix_end;
-}
-
-// Same as ExtractToken, but converts extracted token to integer.
-static const char *ExtractInt(const char *str, const char *delims,
- int *result) {
- char *buff;
- const char *ret = ExtractToken(str, delims, &buff);
- if (buff != 0) {
- *result = (int)internal_atoll(buff);
- }
- InternalFree(buff);
- return ret;
-}
-
-static const char *ExtractUptr(const char *str, const char *delims,
- uptr *result) {
- char *buff;
- const char *ret = ExtractToken(str, delims, &buff);
- if (buff != 0) {
- *result = (uptr)internal_atoll(buff);
- }
- InternalFree(buff);
- return ret;
-}
-
-// ExternalSymbolizer encapsulates communication between the tool and
-// external symbolizer program, running in a different subprocess,
-// For now we assume the following protocol:
-// For each request of the form
-// <module_name> <module_offset>
-// passed to STDIN, external symbolizer prints to STDOUT response:
-// <function_name>
-// <file_name>:<line_number>:<column_number>
-// <function_name>
-// <file_name>:<line_number>:<column_number>
-// ...
-// <empty line>
-class ExternalSymbolizer {
- public:
- ExternalSymbolizer(const char *path, int input_fd, int output_fd)
- : path_(path),
- input_fd_(input_fd),
- output_fd_(output_fd),
- times_restarted_(0) {
- CHECK(path_);
- CHECK_NE(input_fd_, kInvalidFd);
- CHECK_NE(output_fd_, kInvalidFd);
- }
-
- char *SendCommand(bool is_data, const char *module_name, uptr module_offset) {
- CHECK(module_name);
- internal_snprintf(buffer_, kBufferSize, "%s\"%s\" 0x%zx\n",
- is_data ? "DATA " : "", module_name, module_offset);
- if (!writeToSymbolizer(buffer_, internal_strlen(buffer_)))
- return 0;
- if (!readFromSymbolizer(buffer_, kBufferSize))
- return 0;
- return buffer_;
- }
-
- bool Restart() {
- if (times_restarted_ >= kMaxTimesRestarted) return false;
- times_restarted_++;
- internal_close(input_fd_);
- internal_close(output_fd_);
- return StartSymbolizerSubprocess(path_, &input_fd_, &output_fd_);
- }
-
- void Flush() {
- }
-
- private:
- bool readFromSymbolizer(char *buffer, uptr max_length) {
- if (max_length == 0)
- return true;
- uptr read_len = 0;
- while (true) {
- uptr just_read = internal_read(input_fd_, buffer + read_len,
- max_length - read_len);
- // We can't read 0 bytes, as we don't expect external symbolizer to close
- // its stdout.
- if (just_read == 0 || just_read == (uptr)-1) {
- Report("WARNING: Can't read from symbolizer at fd %d\n", input_fd_);
- return false;
- }
- read_len += just_read;
- // Empty line marks the end of symbolizer output.
- if (read_len >= 2 && buffer[read_len - 1] == '\n' &&
- buffer[read_len - 2] == '\n') {
- break;
- }
- }
- return true;
- }
-
- bool writeToSymbolizer(const char *buffer, uptr length) {
- if (length == 0)
- return true;
- uptr write_len = internal_write(output_fd_, buffer, length);
- if (write_len == 0 || write_len == (uptr)-1) {
- Report("WARNING: Can't write to symbolizer at fd %d\n", output_fd_);
- return false;
- }
- return true;
- }
-
- const char *path_;
- int input_fd_;
- int output_fd_;
-
- static const uptr kBufferSize = 16 * 1024;
- char buffer_[kBufferSize];
-
- static const uptr kMaxTimesRestarted = 5;
- uptr times_restarted_;
-};
-
-static LowLevelAllocator symbolizer_allocator; // Linker initialized.
-
-#if SANITIZER_SUPPORTS_WEAK_HOOKS
-extern "C" {
-SANITIZER_WEAK_ATTRIBUTE SANITIZER_INTERFACE_ATTRIBUTE
-bool __sanitizer_symbolize_code(const char *ModuleName, u64 ModuleOffset,
- char *Buffer, int MaxLength);
-SANITIZER_WEAK_ATTRIBUTE SANITIZER_INTERFACE_ATTRIBUTE
-bool __sanitizer_symbolize_data(const char *ModuleName, u64 ModuleOffset,
- char *Buffer, int MaxLength);
-SANITIZER_WEAK_ATTRIBUTE SANITIZER_INTERFACE_ATTRIBUTE
-void __sanitizer_symbolize_flush();
-} // extern "C"
-
-class InternalSymbolizer {
- public:
- typedef bool (*SanitizerSymbolizeFn)(const char*, u64, char*, int);
-
- static InternalSymbolizer *get() {
- if (__sanitizer_symbolize_code != 0 &&
- __sanitizer_symbolize_data != 0) {
- void *mem = symbolizer_allocator.Allocate(sizeof(InternalSymbolizer));
- return new(mem) InternalSymbolizer();
- }
- return 0;
- }
-
- char *SendCommand(bool is_data, const char *module_name, uptr module_offset) {
- SanitizerSymbolizeFn symbolize_fn = is_data ? __sanitizer_symbolize_data
- : __sanitizer_symbolize_code;
- if (symbolize_fn(module_name, module_offset, buffer_, kBufferSize))
- return buffer_;
- return 0;
- }
-
- void Flush() {
- if (__sanitizer_symbolize_flush)
- __sanitizer_symbolize_flush();
- }
-
- private:
- InternalSymbolizer() { }
-
- static const int kBufferSize = 16 * 1024;
- char buffer_[kBufferSize];
-};
-#else // SANITIZER_SUPPORTS_WEAK_HOOKS
-
-class InternalSymbolizer {
- public:
- static InternalSymbolizer *get() { return 0; }
- char *SendCommand(bool is_data, const char *module_name, uptr module_offset) {
- return 0;
- }
- void Flush() {
- }
-};
-
-#endif // SANITIZER_SUPPORTS_WEAK_HOOKS
-
-class Symbolizer {
- // This class has no constructor, as global constructors are forbidden in
- // sanitizer_common. It should be linker initialized instead.
- public:
- uptr SymbolizeCode(uptr addr, AddressInfo *frames, uptr max_frames) {
- if (max_frames == 0)
- return 0;
- LoadedModule *module = FindModuleForAddress(addr);
- if (module == 0)
- return 0;
- const char *module_name = module->full_name();
- uptr module_offset = addr - module->base_address();
- const char *str = SendCommand(false, module_name, module_offset);
- if (str == 0) {
- // External symbolizer was not initialized or failed. Fill only data
- // about module name and offset.
- AddressInfo *info = &frames[0];
- info->Clear();
- info->FillAddressAndModuleInfo(addr, module_name, module_offset);
- return 1;
- }
- uptr frame_id = 0;
- for (frame_id = 0; frame_id < max_frames; frame_id++) {
- AddressInfo *info = &frames[frame_id];
- char *function_name = 0;
- str = ExtractToken(str, "\n", &function_name);
- CHECK(function_name);
- if (function_name[0] == '\0') {
- // There are no more frames.
- break;
- }
- info->Clear();
- info->FillAddressAndModuleInfo(addr, module_name, module_offset);
- info->function = function_name;
- // Parse <file>:<line>:<column> buffer.
- char *file_line_info = 0;
- str = ExtractToken(str, "\n", &file_line_info);
- CHECK(file_line_info);
- const char *line_info = ExtractToken(file_line_info, ":", &info->file);
- line_info = ExtractInt(line_info, ":", &info->line);
- line_info = ExtractInt(line_info, "", &info->column);
- InternalFree(file_line_info);
-
- // Functions and filenames can be "??", in which case we write 0
- // to address info to mark that names are unknown.
- if (0 == internal_strcmp(info->function, "??")) {
- InternalFree(info->function);
- info->function = 0;
- }
- if (0 == internal_strcmp(info->file, "??")) {
- InternalFree(info->file);
- info->file = 0;
- }
- }
- if (frame_id == 0) {
- // Make sure we return at least one frame.
- AddressInfo *info = &frames[0];
- info->Clear();
- info->FillAddressAndModuleInfo(addr, module_name, module_offset);
- frame_id = 1;
- }
- return frame_id;
- }
-
- bool SymbolizeData(uptr addr, DataInfo *info) {
- LoadedModule *module = FindModuleForAddress(addr);
- if (module == 0)
- return false;
- const char *module_name = module->full_name();
- uptr module_offset = addr - module->base_address();
- internal_memset(info, 0, sizeof(*info));
- info->address = addr;
- info->module = internal_strdup(module_name);
- info->module_offset = module_offset;
- const char *str = SendCommand(true, module_name, module_offset);
- if (str == 0)
- return true;
- str = ExtractToken(str, "\n", &info->name);
- str = ExtractUptr(str, " ", &info->start);
- str = ExtractUptr(str, "\n", &info->size);
- info->start += module->base_address();
- return true;
- }
-
- bool InitializeExternalSymbolizer(const char *path_to_symbolizer) {
- int input_fd, output_fd;
- if (!StartSymbolizerSubprocess(path_to_symbolizer, &input_fd, &output_fd))
- return false;
- void *mem = symbolizer_allocator.Allocate(sizeof(ExternalSymbolizer));
- external_symbolizer_ = new(mem) ExternalSymbolizer(path_to_symbolizer,
- input_fd, output_fd);
- return true;
- }
-
- bool IsSymbolizerAvailable() {
- if (internal_symbolizer_ == 0)
- internal_symbolizer_ = InternalSymbolizer::get();
- return internal_symbolizer_ || external_symbolizer_;
- }
-
- void Flush() {
- if (internal_symbolizer_)
- internal_symbolizer_->Flush();
- if (external_symbolizer_)
- external_symbolizer_->Flush();
- }
-
- private:
- char *SendCommand(bool is_data, const char *module_name, uptr module_offset) {
- // First, try to use internal symbolizer.
- if (!IsSymbolizerAvailable()) {
- return 0;
- }
- if (internal_symbolizer_) {
- return internal_symbolizer_->SendCommand(is_data, module_name,
- module_offset);
- }
- // Otherwise, fall back to external symbolizer.
- if (external_symbolizer_ == 0) {
- ReportExternalSymbolizerError(
- "WARNING: Trying to symbolize code, but external "
- "symbolizer is not initialized!\n");
- return 0;
- }
- for (;;) {
- char *reply = external_symbolizer_->SendCommand(is_data, module_name,
- module_offset);
- if (reply)
- return reply;
- // Try to restart symbolizer subprocess. If we don't succeed, forget
- // about it and don't try to use it later.
- if (!external_symbolizer_->Restart()) {
- ReportExternalSymbolizerError(
- "WARNING: Failed to use and restart external symbolizer!\n");
- external_symbolizer_ = 0;
- return 0;
- }
- }
- }
-
- LoadedModule *FindModuleForAddress(uptr address) {
- bool modules_were_reloaded = false;
- if (modules_ == 0 || !modules_fresh_) {
- modules_ = (LoadedModule*)(symbolizer_allocator.Allocate(
- kMaxNumberOfModuleContexts * sizeof(LoadedModule)));
- CHECK(modules_);
- n_modules_ = GetListOfModules(modules_, kMaxNumberOfModuleContexts,
- /* filter */ 0);
- // FIXME: Return this check when GetListOfModules is implemented on Mac.
- // CHECK_GT(n_modules_, 0);
- CHECK_LT(n_modules_, kMaxNumberOfModuleContexts);
- modules_fresh_ = true;
- modules_were_reloaded = true;
- }
- for (uptr i = 0; i < n_modules_; i++) {
- if (modules_[i].containsAddress(address)) {
- return &modules_[i];
- }
- }
- // Reload the modules and look up again, if we haven't tried it yet.
- if (!modules_were_reloaded) {
- // FIXME: set modules_fresh_ from dlopen()/dlclose() interceptors.
- // It's too aggressive to reload the list of modules each time we fail
- // to find a module for a given address.
- modules_fresh_ = false;
- return FindModuleForAddress(address);
- }
- return 0;
- }
-
- void ReportExternalSymbolizerError(const char *msg) {
- // Don't use atomics here for now, as SymbolizeCode can't be called
- // from multiple threads anyway.
- static bool reported;
- if (!reported) {
- Report(msg);
- reported = true;
- }
- }
-
- // 16K loaded modules should be enough for everyone.
- static const uptr kMaxNumberOfModuleContexts = 1 << 14;
- LoadedModule *modules_; // Array of module descriptions is leaked.
- uptr n_modules_;
- // If stale, need to reload the modules before looking up addresses.
- bool modules_fresh_;
-
- ExternalSymbolizer *external_symbolizer_; // Leaked.
- InternalSymbolizer *internal_symbolizer_; // Leaked.
-};
-
-static Symbolizer symbolizer; // Linker initialized.
-
-uptr SymbolizeCode(uptr address, AddressInfo *frames, uptr max_frames) {
- return symbolizer.SymbolizeCode(address, frames, max_frames);
-}
-
-bool SymbolizeData(uptr address, DataInfo *info) {
- return symbolizer.SymbolizeData(address, info);
-}
-
-bool InitializeExternalSymbolizer(const char *path_to_symbolizer) {
- return symbolizer.InitializeExternalSymbolizer(path_to_symbolizer);
-}
-
-bool IsSymbolizerAvailable() {
- return symbolizer.IsSymbolizerAvailable();
-}
-
-void FlushSymbolizer() {
- symbolizer.Flush();
+Symbolizer *Symbolizer::GetOrInit() {
+ SpinMutexLock l(&init_mu_);
+ if (symbolizer_ == 0)
+ return CreateAndStore(0);
+ return symbolizer_;
}
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_symbolizer_linux_libcdep.cc b/lib/sanitizer_common/sanitizer_symbolizer_linux_libcdep.cc
deleted file mode 100644
index 82ce50e0aacb..000000000000
--- a/lib/sanitizer_common/sanitizer_symbolizer_linux_libcdep.cc
+++ /dev/null
@@ -1,227 +0,0 @@
-//===-- sanitizer_symbolizer_linux_libcdep.cc -----------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file is shared between AddressSanitizer and ThreadSanitizer
-// run-time libraries.
-// Linux-specific implementation of symbolizer parts.
-//===----------------------------------------------------------------------===//
-
-#include "sanitizer_platform.h"
-#if SANITIZER_LINUX
-#include "sanitizer_common.h"
-#include "sanitizer_internal_defs.h"
-#include "sanitizer_libc.h"
-#include "sanitizer_placement_new.h"
-#include "sanitizer_symbolizer.h"
-
-// Android NDK r8e elf.h depends on stdint.h without including the latter.
-#include <stdint.h>
-
-#include <elf.h>
-#include <errno.h>
-#include <poll.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#if !SANITIZER_ANDROID
-#include <link.h>
-#endif
-
-namespace __sanitizer {
-
-static const int kSymbolizerStartupTimeMillis = 10;
-
-bool StartSymbolizerSubprocess(const char *path_to_symbolizer,
- int *input_fd, int *output_fd) {
- if (!FileExists(path_to_symbolizer)) {
- Report("WARNING: invalid path to external symbolizer!\n");
- return false;
- }
-
- int *infd = NULL;
- int *outfd = NULL;
- // The client program may close its stdin and/or stdout and/or stderr
- // thus allowing socketpair to reuse file descriptors 0, 1 or 2.
- // In this case the communication between the forked processes may be
- // broken if either the parent or the child tries to close or duplicate
- // these descriptors. The loop below produces two pairs of file
- // descriptors, each greater than 2 (stderr).
- int sock_pair[5][2];
- for (int i = 0; i < 5; i++) {
- if (pipe(sock_pair[i]) == -1) {
- for (int j = 0; j < i; j++) {
- internal_close(sock_pair[j][0]);
- internal_close(sock_pair[j][1]);
- }
- Report("WARNING: Can't create a socket pair to start "
- "external symbolizer (errno: %d)\n", errno);
- return false;
- } else if (sock_pair[i][0] > 2 && sock_pair[i][1] > 2) {
- if (infd == NULL) {
- infd = sock_pair[i];
- } else {
- outfd = sock_pair[i];
- for (int j = 0; j < i; j++) {
- if (sock_pair[j] == infd) continue;
- internal_close(sock_pair[j][0]);
- internal_close(sock_pair[j][1]);
- }
- break;
- }
- }
- }
- CHECK(infd);
- CHECK(outfd);
-
- int pid = fork();
- if (pid == -1) {
- // Fork() failed.
- internal_close(infd[0]);
- internal_close(infd[1]);
- internal_close(outfd[0]);
- internal_close(outfd[1]);
- Report("WARNING: failed to fork external symbolizer "
- " (errno: %d)\n", errno);
- return false;
- } else if (pid == 0) {
- // Child subprocess.
- internal_close(STDOUT_FILENO);
- internal_close(STDIN_FILENO);
- internal_dup2(outfd[0], STDIN_FILENO);
- internal_dup2(infd[1], STDOUT_FILENO);
- internal_close(outfd[0]);
- internal_close(outfd[1]);
- internal_close(infd[0]);
- internal_close(infd[1]);
- for (int fd = getdtablesize(); fd > 2; fd--)
- internal_close(fd);
- execl(path_to_symbolizer, path_to_symbolizer, (char*)0);
- internal__exit(1);
- }
-
- // Continue execution in parent process.
- internal_close(outfd[0]);
- internal_close(infd[1]);
- *input_fd = infd[0];
- *output_fd = outfd[1];
-
- // Check that symbolizer subprocess started successfully.
- int pid_status;
- SleepForMillis(kSymbolizerStartupTimeMillis);
- int exited_pid = waitpid(pid, &pid_status, WNOHANG);
- if (exited_pid != 0) {
- // Either waitpid failed, or child has already exited.
- Report("WARNING: external symbolizer didn't start up correctly!\n");
- return false;
- }
-
- return true;
-}
-
-#if SANITIZER_ANDROID
-uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
- string_predicate_t filter) {
- return 0;
-}
-
-void SymbolizerPrepareForSandboxing() {
- // Do nothing on Android.
-}
-#else // SANITIZER_ANDROID
-typedef ElfW(Phdr) Elf_Phdr;
-
-struct DlIteratePhdrData {
- LoadedModule *modules;
- uptr current_n;
- bool first;
- uptr max_n;
- string_predicate_t filter;
-};
-
-static const uptr kMaxPathLength = 512;
-
-static char proc_self_exe_cache_str[kMaxPathLength];
-static uptr proc_self_exe_cache_len = 0;
-
-static uptr ReadBinaryName(/*out*/char *buf, uptr buf_len) {
- uptr module_name_len = internal_readlink(
- "/proc/self/exe", buf, buf_len);
- int readlink_error;
- if (internal_iserror(buf_len, &readlink_error)) {
- if (proc_self_exe_cache_len) {
- // If available, use the cached module name.
- CHECK_LE(proc_self_exe_cache_len, buf_len);
- internal_strncpy(buf, proc_self_exe_cache_str, buf_len);
- module_name_len = internal_strlen(proc_self_exe_cache_str);
- } else {
- // We can't read /proc/self/exe for some reason, assume the name of the
- // binary is unknown.
- Report("WARNING: readlink(\"/proc/self/exe\") failed with errno %d, "
- "some stack frames may not be symbolized\n", readlink_error);
- module_name_len = internal_snprintf(buf, buf_len, "/proc/self/exe");
- }
- CHECK_LT(module_name_len, buf_len);
- buf[module_name_len] = '\0';
- }
- return module_name_len;
-}
-
-static int dl_iterate_phdr_cb(dl_phdr_info *info, size_t size, void *arg) {
- DlIteratePhdrData *data = (DlIteratePhdrData*)arg;
- if (data->current_n == data->max_n)
- return 0;
- InternalScopedBuffer<char> module_name(kMaxPathLength);
- module_name.data()[0] = '\0';
- if (data->first) {
- data->first = false;
- // First module is the binary itself.
- ReadBinaryName(module_name.data(), module_name.size());
- } else if (info->dlpi_name) {
- internal_strncpy(module_name.data(), info->dlpi_name, module_name.size());
- }
- if (module_name.data()[0] == '\0')
- return 0;
- if (data->filter && !data->filter(module_name.data()))
- return 0;
- void *mem = &data->modules[data->current_n];
- LoadedModule *cur_module = new(mem) LoadedModule(module_name.data(),
- info->dlpi_addr);
- data->current_n++;
- for (int i = 0; i < info->dlpi_phnum; i++) {
- const Elf_Phdr *phdr = &info->dlpi_phdr[i];
- if (phdr->p_type == PT_LOAD) {
- uptr cur_beg = info->dlpi_addr + phdr->p_vaddr;
- uptr cur_end = cur_beg + phdr->p_memsz;
- cur_module->addAddressRange(cur_beg, cur_end);
- }
- }
- return 0;
-}
-
-uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
- string_predicate_t filter) {
- CHECK(modules);
- DlIteratePhdrData data = {modules, 0, true, max_modules, filter};
- dl_iterate_phdr(dl_iterate_phdr_cb, &data);
- return data.current_n;
-}
-
-void SymbolizerPrepareForSandboxing() {
- if (!proc_self_exe_cache_len) {
- proc_self_exe_cache_len =
- ReadBinaryName(proc_self_exe_cache_str, kMaxPathLength);
- }
-}
-#endif // SANITIZER_ANDROID
-
-} // namespace __sanitizer
-
-#endif // SANITIZER_LINUX
diff --git a/lib/sanitizer_common/sanitizer_symbolizer_mac.cc b/lib/sanitizer_common/sanitizer_symbolizer_mac.cc
deleted file mode 100644
index 9d96690bfda2..000000000000
--- a/lib/sanitizer_common/sanitizer_symbolizer_mac.cc
+++ /dev/null
@@ -1,40 +0,0 @@
-//===-- sanitizer_symbolizer_mac.cc ---------------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file is shared between AddressSanitizer and ThreadSanitizer
-// run-time libraries.
-// Mac-specific implementation of symbolizer parts.
-//===----------------------------------------------------------------------===//
-
-#include "sanitizer_platform.h"
-#if SANITIZER_MAC
-#include "sanitizer_internal_defs.h"
-#include "sanitizer_symbolizer.h"
-
-namespace __sanitizer {
-
-bool StartSymbolizerSubprocess(const char *path_to_symbolizer,
- int *input_fd, int *output_fd) {
- UNIMPLEMENTED();
-}
-
-uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
- string_predicate_t filter) {
- // FIXME: Actually implement this on Mac. Just using MemoryMappingLayout
- // may be enough for this on Mac.
- return 0;
-}
-
-void SymbolizerPrepareForSandboxing() {
- // Do nothing on Mac.
-}
-
-} // namespace __sanitizer
-
-#endif // SANITIZER_MAC
diff --git a/lib/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc b/lib/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc
new file mode 100644
index 000000000000..de11832870e3
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc
@@ -0,0 +1,601 @@
+//===-- sanitizer_symbolizer_posix_libcdep.cc -----------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is shared between AddressSanitizer and ThreadSanitizer
+// run-time libraries.
+// POSIX-specific implementation of symbolizer parts.
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_platform.h"
+#if SANITIZER_POSIX
+#include "sanitizer_allocator_internal.h"
+#include "sanitizer_common.h"
+#include "sanitizer_internal_defs.h"
+#include "sanitizer_linux.h"
+#include "sanitizer_placement_new.h"
+#include "sanitizer_procmaps.h"
+#include "sanitizer_symbolizer.h"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+// C++ demangling function, as required by Itanium C++ ABI. This is weak,
+// because we do not require a C++ ABI library to be linked to a program
+// using sanitizers; if it's not present, we'll just use the mangled name.
+namespace __cxxabiv1 {
+ extern "C" SANITIZER_WEAK_ATTRIBUTE
+ char *__cxa_demangle(const char *mangled, char *buffer,
+ size_t *length, int *status);
+}
+
+namespace __sanitizer {
+
+// Attempts to demangle the name via __cxa_demangle from __cxxabiv1.
+static const char *DemangleCXXABI(const char *name) {
+ // FIXME: __cxa_demangle aggressively insists on allocating memory.
+ // There's not much we can do about that, short of providing our
+ // own demangler (libc++abi's implementation could be adapted so that
+ // it does not allocate). For now, we just call it anyway, and we leak
+ // the returned value.
+ if (__cxxabiv1::__cxa_demangle)
+ if (const char *demangled_name =
+ __cxxabiv1::__cxa_demangle(name, 0, 0, 0))
+ return demangled_name;
+
+ return name;
+}
+
+#if defined(__x86_64__)
+static const char* const kSymbolizerArch = "--default-arch=x86_64";
+#elif defined(__i386__)
+static const char* const kSymbolizerArch = "--default-arch=i386";
+#elif defined(__powerpc64__)
+static const char* const kSymbolizerArch = "--default-arch=powerpc64";
+#else
+static const char* const kSymbolizerArch = "--default-arch=unknown";
+#endif
+
+static const int kSymbolizerStartupTimeMillis = 10;
+
+// Creates external symbolizer connected via pipe, user should write
+// to output_fd and read from input_fd.
+static bool StartSymbolizerSubprocess(const char *path_to_symbolizer,
+ int *input_fd, int *output_fd) {
+ if (!FileExists(path_to_symbolizer)) {
+ Report("WARNING: invalid path to external symbolizer!\n");
+ return false;
+ }
+
+ int *infd = NULL;
+ int *outfd = NULL;
+ // The client program may close its stdin and/or stdout and/or stderr
+ // thus allowing socketpair to reuse file descriptors 0, 1 or 2.
+ // In this case the communication between the forked processes may be
+ // broken if either the parent or the child tries to close or duplicate
+ // these descriptors. The loop below produces two pairs of file
+ // descriptors, each greater than 2 (stderr).
+ int sock_pair[5][2];
+ for (int i = 0; i < 5; i++) {
+ if (pipe(sock_pair[i]) == -1) {
+ for (int j = 0; j < i; j++) {
+ internal_close(sock_pair[j][0]);
+ internal_close(sock_pair[j][1]);
+ }
+ Report("WARNING: Can't create a socket pair to start "
+ "external symbolizer (errno: %d)\n", errno);
+ return false;
+ } else if (sock_pair[i][0] > 2 && sock_pair[i][1] > 2) {
+ if (infd == NULL) {
+ infd = sock_pair[i];
+ } else {
+ outfd = sock_pair[i];
+ for (int j = 0; j < i; j++) {
+ if (sock_pair[j] == infd) continue;
+ internal_close(sock_pair[j][0]);
+ internal_close(sock_pair[j][1]);
+ }
+ break;
+ }
+ }
+ }
+ CHECK(infd);
+ CHECK(outfd);
+
+ int pid = fork();
+ if (pid == -1) {
+ // Fork() failed.
+ internal_close(infd[0]);
+ internal_close(infd[1]);
+ internal_close(outfd[0]);
+ internal_close(outfd[1]);
+ Report("WARNING: failed to fork external symbolizer "
+ " (errno: %d)\n", errno);
+ return false;
+ } else if (pid == 0) {
+ // Child subprocess.
+ internal_close(STDOUT_FILENO);
+ internal_close(STDIN_FILENO);
+ internal_dup2(outfd[0], STDIN_FILENO);
+ internal_dup2(infd[1], STDOUT_FILENO);
+ internal_close(outfd[0]);
+ internal_close(outfd[1]);
+ internal_close(infd[0]);
+ internal_close(infd[1]);
+ for (int fd = getdtablesize(); fd > 2; fd--)
+ internal_close(fd);
+ execl(path_to_symbolizer, path_to_symbolizer, kSymbolizerArch, (char*)0);
+ internal__exit(1);
+ }
+
+ // Continue execution in parent process.
+ internal_close(outfd[0]);
+ internal_close(infd[1]);
+ *input_fd = infd[0];
+ *output_fd = outfd[1];
+
+ // Check that symbolizer subprocess started successfully.
+ int pid_status;
+ SleepForMillis(kSymbolizerStartupTimeMillis);
+ int exited_pid = waitpid(pid, &pid_status, WNOHANG);
+ if (exited_pid != 0) {
+ // Either waitpid failed, or child has already exited.
+ Report("WARNING: external symbolizer didn't start up correctly!\n");
+ return false;
+ }
+
+ return true;
+}
+
+// Extracts the prefix of "str" that consists of any characters not
+// present in "delims" string, and copies this prefix to "result", allocating
+// space for it.
+// Returns a pointer to "str" after skipping extracted prefix and first
+// delimiter char.
+static const char *ExtractToken(const char *str, const char *delims,
+ char **result) {
+ uptr prefix_len = internal_strcspn(str, delims);
+ *result = (char*)InternalAlloc(prefix_len + 1);
+ internal_memcpy(*result, str, prefix_len);
+ (*result)[prefix_len] = '\0';
+ const char *prefix_end = str + prefix_len;
+ if (*prefix_end != '\0') prefix_end++;
+ return prefix_end;
+}
+
+// Same as ExtractToken, but converts extracted token to integer.
+static const char *ExtractInt(const char *str, const char *delims,
+ int *result) {
+ char *buff;
+ const char *ret = ExtractToken(str, delims, &buff);
+ if (buff != 0) {
+ *result = (int)internal_atoll(buff);
+ }
+ InternalFree(buff);
+ return ret;
+}
+
+static const char *ExtractUptr(const char *str, const char *delims,
+ uptr *result) {
+ char *buff;
+ const char *ret = ExtractToken(str, delims, &buff);
+ if (buff != 0) {
+ *result = (uptr)internal_atoll(buff);
+ }
+ InternalFree(buff);
+ return ret;
+}
+
+// ExternalSymbolizer encapsulates communication between the tool and
+// external symbolizer program, running in a different subprocess,
+// For now we assume the following protocol:
+// For each request of the form
+// <module_name> <module_offset>
+// passed to STDIN, external symbolizer prints to STDOUT response:
+// <function_name>
+// <file_name>:<line_number>:<column_number>
+// <function_name>
+// <file_name>:<line_number>:<column_number>
+// ...
+// <empty line>
+class ExternalSymbolizer {
+ public:
+ ExternalSymbolizer(const char *path, int input_fd, int output_fd)
+ : path_(path),
+ input_fd_(input_fd),
+ output_fd_(output_fd),
+ times_restarted_(0) {
+ CHECK(path_);
+ CHECK_NE(input_fd_, kInvalidFd);
+ CHECK_NE(output_fd_, kInvalidFd);
+ }
+
+ char *SendCommand(bool is_data, const char *module_name, uptr module_offset) {
+ CHECK(module_name);
+ internal_snprintf(buffer_, kBufferSize, "%s\"%s\" 0x%zx\n",
+ is_data ? "DATA " : "", module_name, module_offset);
+ if (!writeToSymbolizer(buffer_, internal_strlen(buffer_)))
+ return 0;
+ if (!readFromSymbolizer(buffer_, kBufferSize))
+ return 0;
+ return buffer_;
+ }
+
+ bool Restart() {
+ if (times_restarted_ >= kMaxTimesRestarted) return false;
+ times_restarted_++;
+ internal_close(input_fd_);
+ internal_close(output_fd_);
+ return StartSymbolizerSubprocess(path_, &input_fd_, &output_fd_);
+ }
+
+ void Flush() {
+ }
+
+ private:
+ bool readFromSymbolizer(char *buffer, uptr max_length) {
+ if (max_length == 0)
+ return true;
+ uptr read_len = 0;
+ while (true) {
+ uptr just_read = internal_read(input_fd_, buffer + read_len,
+ max_length - read_len);
+ // We can't read 0 bytes, as we don't expect external symbolizer to close
+ // its stdout.
+ if (just_read == 0 || just_read == (uptr)-1) {
+ Report("WARNING: Can't read from symbolizer at fd %d\n", input_fd_);
+ return false;
+ }
+ read_len += just_read;
+ // Empty line marks the end of symbolizer output.
+ if (read_len >= 2 && buffer[read_len - 1] == '\n' &&
+ buffer[read_len - 2] == '\n') {
+ break;
+ }
+ }
+ return true;
+ }
+
+ bool writeToSymbolizer(const char *buffer, uptr length) {
+ if (length == 0)
+ return true;
+ uptr write_len = internal_write(output_fd_, buffer, length);
+ if (write_len == 0 || write_len == (uptr)-1) {
+ Report("WARNING: Can't write to symbolizer at fd %d\n", output_fd_);
+ return false;
+ }
+ return true;
+ }
+
+ const char *path_;
+ int input_fd_;
+ int output_fd_;
+
+ static const uptr kBufferSize = 16 * 1024;
+ char buffer_[kBufferSize];
+
+ static const uptr kMaxTimesRestarted = 5;
+ uptr times_restarted_;
+};
+
+#if SANITIZER_SUPPORTS_WEAK_HOOKS
+extern "C" {
+SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
+bool __sanitizer_symbolize_code(const char *ModuleName, u64 ModuleOffset,
+ char *Buffer, int MaxLength);
+SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
+bool __sanitizer_symbolize_data(const char *ModuleName, u64 ModuleOffset,
+ char *Buffer, int MaxLength);
+SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
+void __sanitizer_symbolize_flush();
+SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
+int __sanitizer_symbolize_demangle(const char *Name, char *Buffer,
+ int MaxLength);
+} // extern "C"
+
+class InternalSymbolizer {
+ public:
+ typedef bool (*SanitizerSymbolizeFn)(const char*, u64, char*, int);
+
+ static InternalSymbolizer *get(LowLevelAllocator *alloc) {
+ if (__sanitizer_symbolize_code != 0 &&
+ __sanitizer_symbolize_data != 0) {
+ return new(*alloc) InternalSymbolizer();
+ }
+ return 0;
+ }
+
+ char *SendCommand(bool is_data, const char *module_name, uptr module_offset) {
+ SanitizerSymbolizeFn symbolize_fn = is_data ? __sanitizer_symbolize_data
+ : __sanitizer_symbolize_code;
+ if (symbolize_fn(module_name, module_offset, buffer_, kBufferSize))
+ return buffer_;
+ return 0;
+ }
+
+ void Flush() {
+ if (__sanitizer_symbolize_flush)
+ __sanitizer_symbolize_flush();
+ }
+
+ const char *Demangle(const char *name) {
+ if (__sanitizer_symbolize_demangle) {
+ for (uptr res_length = 1024;
+ res_length <= InternalSizeClassMap::kMaxSize;) {
+ char *res_buff = static_cast<char*>(InternalAlloc(res_length));
+ uptr req_length =
+ __sanitizer_symbolize_demangle(name, res_buff, res_length);
+ if (req_length > res_length) {
+ res_length = req_length + 1;
+ InternalFree(res_buff);
+ continue;
+ }
+ return res_buff;
+ }
+ }
+ return name;
+ }
+
+ private:
+ InternalSymbolizer() { }
+
+ static const int kBufferSize = 16 * 1024;
+ static const int kMaxDemangledNameSize = 1024;
+ char buffer_[kBufferSize];
+};
+#else // SANITIZER_SUPPORTS_WEAK_HOOKS
+
+class InternalSymbolizer {
+ public:
+ static InternalSymbolizer *get(LowLevelAllocator *alloc) { return 0; }
+ char *SendCommand(bool is_data, const char *module_name, uptr module_offset) {
+ return 0;
+ }
+ void Flush() { }
+ const char *Demangle(const char *name) { return name; }
+};
+
+#endif // SANITIZER_SUPPORTS_WEAK_HOOKS
+
+class POSIXSymbolizer : public Symbolizer {
+ public:
+ POSIXSymbolizer(ExternalSymbolizer *external_symbolizer,
+ InternalSymbolizer *internal_symbolizer)
+ : Symbolizer(),
+ external_symbolizer_(external_symbolizer),
+ internal_symbolizer_(internal_symbolizer) {}
+
+ uptr SymbolizeCode(uptr addr, AddressInfo *frames, uptr max_frames) {
+ BlockingMutexLock l(&mu_);
+ if (max_frames == 0)
+ return 0;
+ LoadedModule *module = FindModuleForAddress(addr);
+ if (module == 0)
+ return 0;
+ const char *module_name = module->full_name();
+ uptr module_offset = addr - module->base_address();
+ const char *str = SendCommand(false, module_name, module_offset);
+ if (str == 0) {
+ // External symbolizer was not initialized or failed. Fill only data
+ // about module name and offset.
+ AddressInfo *info = &frames[0];
+ info->Clear();
+ info->FillAddressAndModuleInfo(addr, module_name, module_offset);
+ return 1;
+ }
+ uptr frame_id = 0;
+ for (frame_id = 0; frame_id < max_frames; frame_id++) {
+ AddressInfo *info = &frames[frame_id];
+ char *function_name = 0;
+ str = ExtractToken(str, "\n", &function_name);
+ CHECK(function_name);
+ if (function_name[0] == '\0') {
+ // There are no more frames.
+ break;
+ }
+ info->Clear();
+ info->FillAddressAndModuleInfo(addr, module_name, module_offset);
+ info->function = function_name;
+ // Parse <file>:<line>:<column> buffer.
+ char *file_line_info = 0;
+ str = ExtractToken(str, "\n", &file_line_info);
+ CHECK(file_line_info);
+ const char *line_info = ExtractToken(file_line_info, ":", &info->file);
+ line_info = ExtractInt(line_info, ":", &info->line);
+ line_info = ExtractInt(line_info, "", &info->column);
+ InternalFree(file_line_info);
+
+ // Functions and filenames can be "??", in which case we write 0
+ // to address info to mark that names are unknown.
+ if (0 == internal_strcmp(info->function, "??")) {
+ InternalFree(info->function);
+ info->function = 0;
+ }
+ if (0 == internal_strcmp(info->file, "??")) {
+ InternalFree(info->file);
+ info->file = 0;
+ }
+ }
+ if (frame_id == 0) {
+ // Make sure we return at least one frame.
+ AddressInfo *info = &frames[0];
+ info->Clear();
+ info->FillAddressAndModuleInfo(addr, module_name, module_offset);
+ frame_id = 1;
+ }
+ return frame_id;
+ }
+
+ bool SymbolizeData(uptr addr, DataInfo *info) {
+ BlockingMutexLock l(&mu_);
+ LoadedModule *module = FindModuleForAddress(addr);
+ if (module == 0)
+ return false;
+ const char *module_name = module->full_name();
+ uptr module_offset = addr - module->base_address();
+ internal_memset(info, 0, sizeof(*info));
+ info->address = addr;
+ info->module = internal_strdup(module_name);
+ info->module_offset = module_offset;
+ const char *str = SendCommand(true, module_name, module_offset);
+ if (str == 0)
+ return true;
+ str = ExtractToken(str, "\n", &info->name);
+ str = ExtractUptr(str, " ", &info->start);
+ str = ExtractUptr(str, "\n", &info->size);
+ info->start += module->base_address();
+ return true;
+ }
+
+ bool IsAvailable() {
+ return internal_symbolizer_ != 0 || external_symbolizer_ != 0;
+ }
+
+ bool IsExternalAvailable() {
+ return external_symbolizer_ != 0;
+ }
+
+ void Flush() {
+ BlockingMutexLock l(&mu_);
+ if (internal_symbolizer_ != 0) {
+ SymbolizerScope sym_scope(this);
+ internal_symbolizer_->Flush();
+ }
+ if (external_symbolizer_ != 0)
+ external_symbolizer_->Flush();
+ }
+
+ const char *Demangle(const char *name) {
+ BlockingMutexLock l(&mu_);
+ // Run hooks even if we don't use internal symbolizer, as cxxabi
+ // demangle may call system functions.
+ SymbolizerScope sym_scope(this);
+ if (internal_symbolizer_ != 0)
+ return internal_symbolizer_->Demangle(name);
+ return DemangleCXXABI(name);
+ }
+
+ void PrepareForSandboxing() {
+#if SANITIZER_LINUX && !SANITIZER_ANDROID
+ BlockingMutexLock l(&mu_);
+ // Cache /proc/self/exe on Linux.
+ CacheBinaryName();
+#endif
+ }
+
+ private:
+ char *SendCommand(bool is_data, const char *module_name, uptr module_offset) {
+ mu_.CheckLocked();
+ // First, try to use internal symbolizer.
+ if (internal_symbolizer_) {
+ SymbolizerScope sym_scope(this);
+ return internal_symbolizer_->SendCommand(is_data, module_name,
+ module_offset);
+ }
+ // Otherwise, fall back to external symbolizer.
+ if (external_symbolizer_ == 0) {
+ ReportExternalSymbolizerError(
+ "WARNING: Trying to symbolize code, but external "
+ "symbolizer is not initialized!\n");
+ return 0;
+ }
+ for (;;) {
+ char *reply = external_symbolizer_->SendCommand(is_data, module_name,
+ module_offset);
+ if (reply)
+ return reply;
+ // Try to restart symbolizer subprocess. If we don't succeed, forget
+ // about it and don't try to use it later.
+ if (!external_symbolizer_->Restart()) {
+ ReportExternalSymbolizerError(
+ "WARNING: Failed to use and restart external symbolizer!\n");
+ external_symbolizer_ = 0;
+ return 0;
+ }
+ }
+ }
+
+ LoadedModule *FindModuleForAddress(uptr address) {
+ mu_.CheckLocked();
+ bool modules_were_reloaded = false;
+ if (modules_ == 0 || !modules_fresh_) {
+ modules_ = (LoadedModule*)(symbolizer_allocator_.Allocate(
+ kMaxNumberOfModuleContexts * sizeof(LoadedModule)));
+ CHECK(modules_);
+ n_modules_ = GetListOfModules(modules_, kMaxNumberOfModuleContexts,
+ /* filter */ 0);
+ // FIXME: Return this check when GetListOfModules is implemented on Mac.
+ // CHECK_GT(n_modules_, 0);
+ CHECK_LT(n_modules_, kMaxNumberOfModuleContexts);
+ modules_fresh_ = true;
+ modules_were_reloaded = true;
+ }
+ for (uptr i = 0; i < n_modules_; i++) {
+ if (modules_[i].containsAddress(address)) {
+ return &modules_[i];
+ }
+ }
+ // Reload the modules and look up again, if we haven't tried it yet.
+ if (!modules_were_reloaded) {
+ // FIXME: set modules_fresh_ from dlopen()/dlclose() interceptors.
+ // It's too aggressive to reload the list of modules each time we fail
+ // to find a module for a given address.
+ modules_fresh_ = false;
+ return FindModuleForAddress(address);
+ }
+ return 0;
+ }
+
+ void ReportExternalSymbolizerError(const char *msg) {
+ // Don't use atomics here for now, as SymbolizeCode can't be called
+ // from multiple threads anyway.
+ static bool reported;
+ if (!reported) {
+ Report(msg);
+ reported = true;
+ }
+ }
+
+ // 16K loaded modules should be enough for everyone.
+ static const uptr kMaxNumberOfModuleContexts = 1 << 14;
+ LoadedModule *modules_; // Array of module descriptions is leaked.
+ uptr n_modules_;
+ // If stale, need to reload the modules before looking up addresses.
+ bool modules_fresh_;
+ BlockingMutex mu_;
+
+ ExternalSymbolizer *external_symbolizer_; // Leaked.
+ InternalSymbolizer *const internal_symbolizer_; // Leaked.
+};
+
+Symbolizer *Symbolizer::PlatformInit(const char *path_to_external) {
+ InternalSymbolizer* internal_symbolizer =
+ InternalSymbolizer::get(&symbolizer_allocator_);
+ ExternalSymbolizer *external_symbolizer = 0;
+
+ if (!internal_symbolizer) {
+ if (!path_to_external || path_to_external[0] == '\0')
+ path_to_external = FindPathToBinary("llvm-symbolizer");
+
+ int input_fd, output_fd;
+ if (path_to_external &&
+ StartSymbolizerSubprocess(path_to_external, &input_fd, &output_fd)) {
+ external_symbolizer = new(symbolizer_allocator_)
+ ExternalSymbolizer(path_to_external, input_fd, output_fd);
+ }
+ }
+
+ return new(symbolizer_allocator_)
+ POSIXSymbolizer(external_symbolizer, internal_symbolizer);
+}
+
+} // namespace __sanitizer
+
+#endif // SANITIZER_POSIX
diff --git a/lib/sanitizer_common/sanitizer_symbolizer_win.cc b/lib/sanitizer_common/sanitizer_symbolizer_win.cc
index 993261aab7b0..5d451eff62bd 100644
--- a/lib/sanitizer_common/sanitizer_symbolizer_win.cc
+++ b/lib/sanitizer_common/sanitizer_symbolizer_win.cc
@@ -14,30 +14,11 @@
#include "sanitizer_platform.h"
#if SANITIZER_WINDOWS
-#include <windows.h>
-
-#include "sanitizer_internal_defs.h"
#include "sanitizer_symbolizer.h"
namespace __sanitizer {
-bool StartSymbolizerSubprocess(const char *path_to_symbolizer,
- int *input_fd, int *output_fd) {
- UNIMPLEMENTED();
-}
-
-uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
- string_predicate_t filter) {
- UNIMPLEMENTED();
-};
-
-void SymbolizerPrepareForSandboxing() {
- // Do nothing on Windows.
-}
-
-const char *Demangle(const char *MangledName) {
- return MangledName;
-}
+Symbolizer *Symbolizer::PlatformInit(const char *path_to_external) { return 0; }
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/sanitizer_syscall_linux_x86_64.inc b/lib/sanitizer_common/sanitizer_syscall_linux_x86_64.inc
index e084b84ab118..5ccb83a236bd 100644
--- a/lib/sanitizer_common/sanitizer_syscall_linux_x86_64.inc
+++ b/lib/sanitizer_common/sanitizer_syscall_linux_x86_64.inc
@@ -13,7 +13,8 @@
static uptr internal_syscall(u64 nr) {
u64 retval;
- asm volatile("syscall" : "=a"(retval) : "a"(nr) : "rcx", "r11");
+ asm volatile("syscall" : "=a"(retval) : "a"(nr) : "rcx", "r11",
+ "memory", "cc");
return retval;
}
@@ -21,7 +22,7 @@ template <typename T1>
static uptr internal_syscall(u64 nr, T1 arg1) {
u64 retval;
asm volatile("syscall" : "=a"(retval) : "a"(nr), "D"((u64)arg1) :
- "rcx", "r11");
+ "rcx", "r11", "memory", "cc");
return retval;
}
@@ -29,7 +30,7 @@ template <typename T1, typename T2>
static uptr internal_syscall(u64 nr, T1 arg1, T2 arg2) {
u64 retval;
asm volatile("syscall" : "=a"(retval) : "a"(nr), "D"((u64)arg1),
- "S"((u64)arg2) : "rcx", "r11");
+ "S"((u64)arg2) : "rcx", "r11", "memory", "cc");
return retval;
}
@@ -37,7 +38,7 @@ template <typename T1, typename T2, typename T3>
static uptr internal_syscall(u64 nr, T1 arg1, T2 arg2, T3 arg3) {
u64 retval;
asm volatile("syscall" : "=a"(retval) : "a"(nr), "D"((u64)arg1),
- "S"((u64)arg2), "d"((u64)arg3) : "rcx", "r11");
+ "S"((u64)arg2), "d"((u64)arg3) : "rcx", "r11", "memory", "cc");
return retval;
}
@@ -47,7 +48,7 @@ static uptr internal_syscall(u64 nr, T1 arg1, T2 arg2, T3 arg3, T4 arg4) {
asm volatile("mov %5, %%r10;"
"syscall" : "=a"(retval) : "a"(nr), "D"((u64)arg1),
"S"((u64)arg2), "d"((u64)arg3), "r"((u64)arg4) :
- "rcx", "r11", "r10");
+ "rcx", "r11", "r10", "memory", "cc");
return retval;
}
@@ -59,7 +60,7 @@ static uptr internal_syscall(u64 nr, T1 arg1, T2 arg2, T3 arg3, T4 arg4,
"mov %6, %%r8;"
"syscall" : "=a"(retval) : "a"(nr), "D"((u64)arg1),
"S"((u64)arg2), "d"((u64)arg3), "r"((u64)arg4), "r"((u64)arg5) :
- "rcx", "r11", "r10", "r8");
+ "rcx", "r11", "r10", "r8", "memory", "cc");
return retval;
}
@@ -73,7 +74,8 @@ static uptr internal_syscall(u64 nr, T1 arg1, T2 arg2, T3 arg3, T4 arg4,
"mov %7, %%r9;"
"syscall" : "=a"(retval) : "a"(nr), "D"((u64)arg1),
"S"((u64)arg2), "d"((u64)arg3), "r"((u64)arg4), "r"((u64)arg5),
- "r"((u64)arg6) : "rcx", "r11", "r10", "r8", "r9");
+ "r"((u64)arg6) : "rcx", "r11", "r10", "r8", "r9",
+ "memory", "cc");
return retval;
}
diff --git a/lib/sanitizer_common/sanitizer_thread_registry.cc b/lib/sanitizer_common/sanitizer_thread_registry.cc
index 466dc3b8a27f..bfa29a19cd2d 100644
--- a/lib/sanitizer_common/sanitizer_thread_registry.cc
+++ b/lib/sanitizer_common/sanitizer_thread_registry.cc
@@ -85,7 +85,7 @@ void ThreadContextBase::Reset() {
// ThreadRegistry implementation.
-const u32 ThreadRegistry::kUnknownTid = -1U;
+const u32 ThreadRegistry::kUnknownTid = ~0U;
ThreadRegistry::ThreadRegistry(ThreadContextFactory factory, u32 max_threads,
u32 thread_quarantine_size)
@@ -200,6 +200,18 @@ void ThreadRegistry::SetThreadName(u32 tid, const char *name) {
tctx->SetName(name);
}
+void ThreadRegistry::SetThreadNameByUserId(uptr user_id, const char *name) {
+ BlockingMutexLock l(&mtx_);
+ for (u32 tid = 0; tid < n_contexts_; tid++) {
+ ThreadContextBase *tctx = threads_[tid];
+ if (tctx != 0 && tctx->user_id == user_id &&
+ tctx->status != ThreadStatusInvalid) {
+ tctx->SetName(name);
+ return;
+ }
+ }
+}
+
void ThreadRegistry::DetachThread(u32 tid) {
BlockingMutexLock l(&mtx_);
CHECK_LT(tid, n_contexts_);
diff --git a/lib/sanitizer_common/sanitizer_thread_registry.h b/lib/sanitizer_common/sanitizer_thread_registry.h
index 6072e7c0a002..a59bba570e88 100644
--- a/lib/sanitizer_common/sanitizer_thread_registry.h
+++ b/lib/sanitizer_common/sanitizer_thread_registry.h
@@ -109,6 +109,7 @@ class ThreadRegistry {
ThreadContextBase *FindThreadContextByOsIDLocked(uptr os_id);
void SetThreadName(u32 tid, const char *name);
+ void SetThreadNameByUserId(uptr user_id, const char *name);
void DetachThread(u32 tid);
void JoinThread(u32 tid, void *arg);
void FinishThread(u32 tid);
diff --git a/lib/sanitizer_common/sanitizer_win.cc b/lib/sanitizer_common/sanitizer_win.cc
index e76f1d1f7fa6..362c8c99a74c 100644
--- a/lib/sanitizer_common/sanitizer_win.cc
+++ b/lib/sanitizer_common/sanitizer_win.cc
@@ -40,6 +40,12 @@ uptr GetMmapGranularity() {
return 1U << 16; // FIXME: is this configurable?
}
+uptr GetMaxVirtualAddress() {
+ SYSTEM_INFO si;
+ GetSystemInfo(&si);
+ return (uptr)si.lpMaximumApplicationAddress;
+}
+
bool FileExists(const char *filename) {
UNIMPLEMENTED();
}
@@ -124,7 +130,7 @@ void *MapFileToMemory(const char *file_name, uptr *buff_size) {
}
static const int kMaxEnvNameLength = 128;
-static const int kMaxEnvValueLength = 32767;
+static const DWORD kMaxEnvValueLength = 32767;
namespace {
@@ -190,6 +196,11 @@ void SetStackSizeLimitInBytes(uptr limit) {
UNIMPLEMENTED();
}
+char *FindPathToBinary(const char *name) {
+ // Nothing here for now.
+ return 0;
+}
+
void SleepForSeconds(int seconds) {
Sleep(seconds * 1000);
}
@@ -198,11 +209,20 @@ void SleepForMillis(int millis) {
Sleep(millis);
}
+u64 NanoTime() {
+ return 0;
+}
+
void Abort() {
abort();
_exit(-1); // abort is not NORETURN on Windows.
}
+uptr GetListOfModules(LoadedModule *modules, uptr max_modules,
+ string_predicate_t filter) {
+ UNIMPLEMENTED();
+};
+
#ifndef SANITIZER_GO
int Atexit(void (*function)(void)) {
return atexit(function);
@@ -341,39 +361,48 @@ void InitTlsSize() {
void GetThreadStackAndTls(bool main, uptr *stk_addr, uptr *stk_size,
uptr *tls_addr, uptr *tls_size) {
+#ifdef SANITIZER_GO
+ *stk_addr = 0;
+ *stk_size = 0;
+ *tls_addr = 0;
+ *tls_size = 0;
+#else
uptr stack_top, stack_bottom;
GetThreadStackTopAndBottom(main, &stack_top, &stack_bottom);
*stk_addr = stack_bottom;
*stk_size = stack_top - stack_bottom;
*tls_addr = 0;
*tls_size = 0;
+#endif
}
-void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp,
- uptr stack_top, uptr stack_bottom, bool fast) {
- (void)fast;
- (void)stack_top;
- (void)stack_bottom;
- stack->max_size = max_s;
- void *tmp[kStackTraceMax];
-
+void StackTrace::SlowUnwindStack(uptr pc, uptr max_depth) {
// FIXME: CaptureStackBackTrace might be too slow for us.
// FIXME: Compare with StackWalk64.
// FIXME: Look at LLVMUnhandledExceptionFilter in Signals.inc
- uptr cs_ret = CaptureStackBackTrace(1, stack->max_size, tmp, 0);
- uptr offset = 0;
+ size = CaptureStackBackTrace(2, Min(max_depth, kStackTraceMax),
+ (void**)trace, 0);
// Skip the RTL frames by searching for the PC in the stacktrace.
- // FIXME: this doesn't work well for the malloc/free stacks yet.
- for (uptr i = 0; i < cs_ret; i++) {
- if (pc != (uptr)tmp[i])
- continue;
- offset = i;
- break;
- }
+ uptr pc_location = LocatePcInTrace(pc);
+ PopStackFrames(pc_location);
+}
- stack->size = cs_ret - offset;
- for (uptr i = 0; i < stack->size; i++)
- stack->trace[i] = (uptr)tmp[i + offset];
+void MaybeOpenReportFile() {
+ // Windows doesn't have native fork, and we don't support Cygwin or other
+ // environments that try to fake it, so the initial report_fd will always be
+ // correct.
+}
+
+void RawWrite(const char *buffer) {
+ static const char *kRawWriteError =
+ "RawWrite can't output requested buffer!\n";
+ uptr length = (uptr)internal_strlen(buffer);
+ if (length != internal_write(report_fd, buffer, length)) {
+ // stderr may be closed, but we may be able to print to the debugger
+ // instead. This is the case when launching a program from Visual Studio,
+ // and the following routine should write to its console.
+ OutputDebugStringA(buffer);
+ }
}
} // namespace __sanitizer
diff --git a/lib/sanitizer_common/scripts/check_lint.sh b/lib/sanitizer_common/scripts/check_lint.sh
index 3240f6f18cee..5f1bd4ba4316 100755
--- a/lib/sanitizer_common/scripts/check_lint.sh
+++ b/lib/sanitizer_common/scripts/check_lint.sh
@@ -1,26 +1,21 @@
#!/bin/bash
-set -e
-
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
# Guess path to LLVM_CHECKOUT if not provided
if [ "${LLVM_CHECKOUT}" == "" ]; then
LLVM_CHECKOUT="${SCRIPT_DIR}/../../../../../"
- echo "LLVM Checkout: ${LLVM_CHECKOUT}"
fi
# Cpplint setup
-cd ${SCRIPT_DIR}
-if [ ! -d cpplint ]; then
- svn co http://google-styleguide.googlecode.com/svn/trunk/cpplint cpplint
-else
- (cd cpplint && svn up)
+CPPLINT=${SCRIPT_DIR}/cpplint.py
+if [ "${PYTHON_EXECUTABLE}" != "" ]; then
+ CPPLINT="${PYTHON_EXECUTABLE} ${CPPLINT}"
fi
-CPPLINT=${SCRIPT_DIR}/cpplint/cpplint.py
# Filters
# TODO: remove some of these filters
+LLVM_LINT_FILTER=-,+whitespace
COMMON_LINT_FILTER=-build/include,-build/header_guard,-legal/copyright,-whitespace/comments,-readability/casting,\
-build/namespaces
ASAN_RTL_LINT_FILTER=${COMMON_LINT_FILTER},-runtime/int
@@ -34,62 +29,86 @@ LSAN_RTL_LINT_FILTER=${COMMON_LINT_FILTER}
LSAN_LIT_TEST_LINT_FILTER=${LSAN_RTL_LINT_FILTER},-whitespace/line_length
COMMON_RTL_INC_LINT_FILTER=${COMMON_LINT_FILTER},-runtime/int,-runtime/sizeof,-runtime/printf
SANITIZER_INCLUDES_LINT_FILTER=${COMMON_LINT_FILTER},-runtime/int
-
+MKTEMP="mktemp -q /tmp/tmp.XXXXXXXXXX"
cd ${LLVM_CHECKOUT}
-# LLVM Instrumentation
-LLVM_INSTRUMENTATION=lib/Transforms/Instrumentation
-LLVM_LINT_FILTER=-,+whitespace
-${CPPLINT} --filter=${LLVM_LINT_FILTER} ${LLVM_INSTRUMENTATION}/*Sanitizer.cpp \
- ${LLVM_INSTRUMENTATION}/BlackList.*
+EXITSTATUS=0
+ERROR_LOG=$(${MKTEMP})
+
+run_lint() {
+ FILTER=$1
+ shift
+ TASK_LOG=$(${MKTEMP})
+ ${CPPLINT} --filter=${FILTER} "$@" 2>$TASK_LOG
+ if [ "$?" != "0" ]; then
+ cat $TASK_LOG | grep -v "Done processing" | grep -v "Total errors found" \
+ | grep -v "Skipping input" >> $ERROR_LOG
+ fi
+ if [[ "${SILENT}" != "1" ]]; then
+ cat $TASK_LOG
+ fi
+}
+
+run_lint ${LLVM_LINT_FILTER} --filter=${LLVM_LINT_FILTER} \
+ lib/Transforms/Instrumentation/*Sanitizer.cpp \
+ lib/Transforms/Utils/SpecialCaseList.cpp &
COMPILER_RT=projects/compiler-rt
-
# Headers
SANITIZER_INCLUDES=${COMPILER_RT}/include/sanitizer
-${CPPLINT} --filter=${SANITIZER_INCLUDES_LINT_FILTER} ${SANITIZER_INCLUDES}/*.h
+run_lint ${SANITIZER_INCLUDES_LINT_FILTER} ${SANITIZER_INCLUDES}/*.h &
# Sanitizer_common
COMMON_RTL=${COMPILER_RT}/lib/sanitizer_common
-${CPPLINT} --filter=${COMMON_RTL_INC_LINT_FILTER} ${COMMON_RTL}/*.{cc,h}
-${CPPLINT} --filter=${COMMON_RTL_INC_LINT_FILTER} ${COMMON_RTL}/tests/*.cc
+run_lint ${COMMON_RTL_INC_LINT_FILTER} ${COMMON_RTL}/*.{cc,h} \
+ ${COMMON_RTL}/tests/*.cc &
# Interception
INTERCEPTION=${COMPILER_RT}/lib/interception
-${CPPLINT} --filter=${ASAN_RTL_LINT_FILTER} ${INTERCEPTION}/*.{cc,h}
+run_lint ${ASAN_RTL_LINT_FILTER} ${INTERCEPTION}/*.{cc,h} &
# ASan
ASAN_RTL=${COMPILER_RT}/lib/asan
-${CPPLINT} --filter=${ASAN_RTL_LINT_FILTER} ${ASAN_RTL}/*.{cc,h}
-${CPPLINT} --filter=${ASAN_TEST_LINT_FILTER} ${ASAN_RTL}/tests/*.{cc,h}
-${CPPLINT} --filter=${ASAN_LIT_TEST_LINT_FILTER} ${ASAN_RTL}/lit_tests/*.cc \
- ${ASAN_RTL}/lit_tests/*/*.cc \
+run_lint ${ASAN_RTL_LINT_FILTER} ${ASAN_RTL}/*.{cc,h} &
+run_lint ${ASAN_TEST_LINT_FILTER} ${ASAN_RTL}/tests/*.{cc,h} &
+run_lint ${ASAN_LIT_TEST_LINT_FILTER} ${ASAN_RTL}/lit_tests/*/*.cc &
# TSan
TSAN_RTL=${COMPILER_RT}/lib/tsan
-${CPPLINT} --filter=${TSAN_RTL_LINT_FILTER} ${TSAN_RTL}/rtl/*.{cc,h}
-${CPPLINT} --filter=${TSAN_TEST_LINT_FILTER} ${TSAN_RTL}/tests/rtl/*.{cc,h} \
- ${TSAN_RTL}/tests/unit/*.cc
-${CPPLINT} --filter=${TSAN_LIT_TEST_LINT_FILTER} ${TSAN_RTL}/lit_tests/*.cc
+run_lint ${TSAN_RTL_LINT_FILTER} ${TSAN_RTL}/rtl/*.{cc,h} &
+run_lint ${TSAN_TEST_LINT_FILTER} ${TSAN_RTL}/tests/rtl/*.{cc,h} \
+ ${TSAN_RTL}/tests/unit/*.cc &
+run_lint ${TSAN_LIT_TEST_LINT_FILTER} ${TSAN_RTL}/lit_tests/*.cc &
# MSan
MSAN_RTL=${COMPILER_RT}/lib/msan
-${CPPLINT} --filter=${MSAN_RTL_LINT_FILTER} ${MSAN_RTL}/*.{cc,h}
+run_lint ${MSAN_RTL_LINT_FILTER} ${MSAN_RTL}/*.{cc,h} &
# LSan
LSAN_RTL=${COMPILER_RT}/lib/lsan
-${CPPLINT} --filter=${LSAN_RTL_LINT_FILTER} ${LSAN_RTL}/*.{cc,h}
-${CPPLINT} --filter=${LSAN_RTL_LINT_FILTER} ${LSAN_RTL}/tests/*.{cc,h}
-${CPPLINT} --filter=${LSAN_LIT_TEST_LINT_FILTER} ${LSAN_RTL}/lit_tests/*.{cc,h}
-
-set +e
+run_lint ${LSAN_RTL_LINT_FILTER} ${LSAN_RTL}/*.{cc,h} \
+ ${LSAN_RTL}/tests/*.{cc,h} &
+run_lint ${LSAN_LIT_TEST_LINT_FILTER} ${LSAN_RTL}/lit_tests/*/*.cc &
# Misc files
FILES=${COMMON_RTL}/*.inc
+TMPFILES=""
for FILE in $FILES; do
- TMPFILE=$(mktemp -u ${FILE}.XXXXX).cc
- echo "Checking $FILE"
- cp -f $FILE $TMPFILE && \
- ${CPPLINT} --filter=${COMMON_RTL_INC_LINT_FILTER} $TMPFILE
- rm $TMPFILE
+ TMPFILE="$(${MKTEMP}).$(basename ${FILE}).cc"
+ cp -f $FILE $TMPFILE
+ run_lint ${COMMON_RTL_INC_LINT_FILTER} $TMPFILE &
+ TMPFILES="$TMPFILES $TMPFILE"
done
+
+wait
+
+for temp in $TMPFILES; do
+ rm -f $temp
+done
+
+if [[ -s $ERROR_LOG ]]; then
+ cat $ERROR_LOG
+ exit 1
+fi
+
+exit 0
diff --git a/lib/sanitizer_common/scripts/cpplint.py b/lib/sanitizer_common/scripts/cpplint.py
new file mode 100755
index 000000000000..a8c9f6784f2d
--- /dev/null
+++ b/lib/sanitizer_common/scripts/cpplint.py
@@ -0,0 +1,4024 @@
+#!/usr/bin/python
+#
+# Copyright (c) 2009 Google Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Here are some issues that I've had people identify in my code during reviews,
+# that I think are possible to flag automatically in a lint tool. If these were
+# caught by lint, it would save time both for myself and that of my reviewers.
+# Most likely, some of these are beyond the scope of the current lint framework,
+# but I think it is valuable to retain these wish-list items even if they cannot
+# be immediately implemented.
+#
+# Suggestions
+# -----------
+# - Check for no 'explicit' for multi-arg ctor
+# - Check for boolean assign RHS in parens
+# - Check for ctor initializer-list colon position and spacing
+# - Check that if there's a ctor, there should be a dtor
+# - Check accessors that return non-pointer member variables are
+# declared const
+# - Check accessors that return non-const pointer member vars are
+# *not* declared const
+# - Check for using public includes for testing
+# - Check for spaces between brackets in one-line inline method
+# - Check for no assert()
+# - Check for spaces surrounding operators
+# - Check for 0 in pointer context (should be NULL)
+# - Check for 0 in char context (should be '\0')
+# - Check for camel-case method name conventions for methods
+# that are not simple inline getters and setters
+# - Do not indent namespace contents
+# - Avoid inlining non-trivial constructors in header files
+# - Check for old-school (void) cast for call-sites of functions
+# ignored return value
+# - Check gUnit usage of anonymous namespace
+# - Check for class declaration order (typedefs, consts, enums,
+# ctor(s?), dtor, friend declarations, methods, member vars)
+#
+
+"""Does google-lint on c++ files.
+
+The goal of this script is to identify places in the code that *may*
+be in non-compliance with google style. It does not attempt to fix
+up these problems -- the point is to educate. It does also not
+attempt to find all problems, or to ensure that everything it does
+find is legitimately a problem.
+
+In particular, we can get very confused by /* and // inside strings!
+We do a small hack, which is to ignore //'s with "'s after them on the
+same line, but it is far from perfect (in either direction).
+"""
+
+import codecs
+import copy
+import getopt
+import math # for log
+import os
+import re
+import sre_compile
+import string
+import sys
+import unicodedata
+
+
+_USAGE = """
+Syntax: cpplint.py [--verbose=#] [--output=vs7] [--filter=-x,+y,...]
+ [--counting=total|toplevel|detailed]
+ <file> [file] ...
+
+ The style guidelines this tries to follow are those in
+ http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml
+
+ Every problem is given a confidence score from 1-5, with 5 meaning we are
+ certain of the problem, and 1 meaning it could be a legitimate construct.
+ This will miss some errors, and is not a substitute for a code review.
+
+ To suppress false-positive errors of a certain category, add a
+ 'NOLINT(category)' comment to the line. NOLINT or NOLINT(*)
+ suppresses errors of all categories on that line.
+
+ The files passed in will be linted; at least one file must be provided.
+ Linted extensions are .cc, .cpp, and .h. Other file types will be ignored.
+
+ Flags:
+
+ output=vs7
+ By default, the output is formatted to ease emacs parsing. Visual Studio
+ compatible output (vs7) may also be used. Other formats are unsupported.
+
+ verbose=#
+ Specify a number 0-5 to restrict errors to certain verbosity levels.
+
+ filter=-x,+y,...
+ Specify a comma-separated list of category-filters to apply: only
+ error messages whose category names pass the filters will be printed.
+ (Category names are printed with the message and look like
+ "[whitespace/indent]".) Filters are evaluated left to right.
+ "-FOO" and "FOO" means "do not print categories that start with FOO".
+ "+FOO" means "do print categories that start with FOO".
+
+ Examples: --filter=-whitespace,+whitespace/braces
+ --filter=whitespace,runtime/printf,+runtime/printf_format
+ --filter=-,+build/include_what_you_use
+
+ To see a list of all the categories used in cpplint, pass no arg:
+ --filter=
+
+ counting=total|toplevel|detailed
+ The total number of errors found is always printed. If
+ 'toplevel' is provided, then the count of errors in each of
+ the top-level categories like 'build' and 'whitespace' will
+ also be printed. If 'detailed' is provided, then a count
+ is provided for each category like 'build/class'.
+
+ root=subdir
+ The root directory used for deriving header guard CPP variable.
+ By default, the header guard CPP variable is calculated as the relative
+ path to the directory that contains .git, .hg, or .svn. When this flag
+ is specified, the relative path is calculated from the specified
+ directory. If the specified directory does not exist, this flag is
+ ignored.
+
+ Examples:
+ Assuing that src/.git exists, the header guard CPP variables for
+ src/chrome/browser/ui/browser.h are:
+
+ No flag => CHROME_BROWSER_UI_BROWSER_H_
+ --root=chrome => BROWSER_UI_BROWSER_H_
+ --root=chrome/browser => UI_BROWSER_H_
+"""
+
+# We categorize each error message we print. Here are the categories.
+# We want an explicit list so we can list them all in cpplint --filter=.
+# If you add a new error message with a new category, add it to the list
+# here! cpplint_unittest.py should tell you if you forget to do this.
+# \ used for clearer layout -- pylint: disable-msg=C6013
+_ERROR_CATEGORIES = [
+ 'build/class',
+ 'build/deprecated',
+ 'build/endif_comment',
+ 'build/explicit_make_pair',
+ 'build/forward_decl',
+ 'build/header_guard',
+ 'build/include',
+ 'build/include_alpha',
+ 'build/include_order',
+ 'build/include_what_you_use',
+ 'build/namespaces',
+ 'build/printf_format',
+ 'build/storage_class',
+ 'legal/copyright',
+ 'readability/alt_tokens',
+ 'readability/braces',
+ 'readability/casting',
+ 'readability/check',
+ 'readability/constructors',
+ 'readability/fn_size',
+ 'readability/function',
+ 'readability/multiline_comment',
+ 'readability/multiline_string',
+ 'readability/namespace',
+ 'readability/nolint',
+ 'readability/streams',
+ 'readability/todo',
+ 'readability/utf8',
+ 'runtime/arrays',
+ 'runtime/casting',
+ 'runtime/explicit',
+ 'runtime/int',
+ 'runtime/init',
+ 'runtime/invalid_increment',
+ 'runtime/member_string_references',
+ 'runtime/memset',
+ 'runtime/operator',
+ 'runtime/printf',
+ 'runtime/printf_format',
+ 'runtime/references',
+ 'runtime/rtti',
+ 'runtime/sizeof',
+ 'runtime/string',
+ 'runtime/threadsafe_fn',
+ 'whitespace/blank_line',
+ 'whitespace/braces',
+ 'whitespace/comma',
+ 'whitespace/comments',
+ 'whitespace/empty_loop_body',
+ 'whitespace/end_of_line',
+ 'whitespace/ending_newline',
+ 'whitespace/forcolon',
+ 'whitespace/indent',
+ 'whitespace/labels',
+ 'whitespace/line_length',
+ 'whitespace/newline',
+ 'whitespace/operators',
+ 'whitespace/parens',
+ 'whitespace/semicolon',
+ 'whitespace/tab',
+ 'whitespace/todo'
+ ]
+
+# The default state of the category filter. This is overrided by the --filter=
+# flag. By default all errors are on, so only add here categories that should be
+# off by default (i.e., categories that must be enabled by the --filter= flags).
+# All entries here should start with a '-' or '+', as in the --filter= flag.
+_DEFAULT_FILTERS = ['-build/include_alpha']
+
+# We used to check for high-bit characters, but after much discussion we
+# decided those were OK, as long as they were in UTF-8 and didn't represent
+# hard-coded international strings, which belong in a separate i18n file.
+
+# Headers that we consider STL headers.
+_STL_HEADERS = frozenset([
+ 'algobase.h', 'algorithm', 'alloc.h', 'bitset', 'deque', 'exception',
+ 'function.h', 'functional', 'hash_map', 'hash_map.h', 'hash_set',
+ 'hash_set.h', 'iterator', 'list', 'list.h', 'map', 'memory', 'new',
+ 'pair.h', 'pthread_alloc', 'queue', 'set', 'set.h', 'sstream', 'stack',
+ 'stl_alloc.h', 'stl_relops.h', 'type_traits.h',
+ 'utility', 'vector', 'vector.h',
+ ])
+
+
+# Non-STL C++ system headers.
+_CPP_HEADERS = frozenset([
+ 'algo.h', 'builtinbuf.h', 'bvector.h', 'cassert', 'cctype',
+ 'cerrno', 'cfloat', 'ciso646', 'climits', 'clocale', 'cmath',
+ 'complex', 'complex.h', 'csetjmp', 'csignal', 'cstdarg', 'cstddef',
+ 'cstdio', 'cstdlib', 'cstring', 'ctime', 'cwchar', 'cwctype',
+ 'defalloc.h', 'deque.h', 'editbuf.h', 'exception', 'fstream',
+ 'fstream.h', 'hashtable.h', 'heap.h', 'indstream.h', 'iomanip',
+ 'iomanip.h', 'ios', 'iosfwd', 'iostream', 'iostream.h', 'istream',
+ 'istream.h', 'iterator.h', 'limits', 'map.h', 'multimap.h', 'multiset.h',
+ 'numeric', 'ostream', 'ostream.h', 'parsestream.h', 'pfstream.h',
+ 'PlotFile.h', 'procbuf.h', 'pthread_alloc.h', 'rope', 'rope.h',
+ 'ropeimpl.h', 'SFile.h', 'slist', 'slist.h', 'stack.h', 'stdexcept',
+ 'stdiostream.h', 'streambuf', 'streambuf.h', 'stream.h', 'strfile.h',
+ 'string', 'strstream', 'strstream.h', 'tempbuf.h', 'tree.h', 'typeinfo',
+ 'valarray',
+ ])
+
+
+# Assertion macros. These are defined in base/logging.h and
+# testing/base/gunit.h. Note that the _M versions need to come first
+# for substring matching to work.
+_CHECK_MACROS = [
+ 'DCHECK', 'CHECK',
+ 'EXPECT_TRUE_M', 'EXPECT_TRUE',
+ 'ASSERT_TRUE_M', 'ASSERT_TRUE',
+ 'EXPECT_FALSE_M', 'EXPECT_FALSE',
+ 'ASSERT_FALSE_M', 'ASSERT_FALSE',
+ ]
+
+# Replacement macros for CHECK/DCHECK/EXPECT_TRUE/EXPECT_FALSE
+_CHECK_REPLACEMENT = dict([(m, {}) for m in _CHECK_MACROS])
+
+for op, replacement in [('==', 'EQ'), ('!=', 'NE'),
+ ('>=', 'GE'), ('>', 'GT'),
+ ('<=', 'LE'), ('<', 'LT')]:
+ _CHECK_REPLACEMENT['DCHECK'][op] = 'DCHECK_%s' % replacement
+ _CHECK_REPLACEMENT['CHECK'][op] = 'CHECK_%s' % replacement
+ _CHECK_REPLACEMENT['EXPECT_TRUE'][op] = 'EXPECT_%s' % replacement
+ _CHECK_REPLACEMENT['ASSERT_TRUE'][op] = 'ASSERT_%s' % replacement
+ _CHECK_REPLACEMENT['EXPECT_TRUE_M'][op] = 'EXPECT_%s_M' % replacement
+ _CHECK_REPLACEMENT['ASSERT_TRUE_M'][op] = 'ASSERT_%s_M' % replacement
+
+for op, inv_replacement in [('==', 'NE'), ('!=', 'EQ'),
+ ('>=', 'LT'), ('>', 'LE'),
+ ('<=', 'GT'), ('<', 'GE')]:
+ _CHECK_REPLACEMENT['EXPECT_FALSE'][op] = 'EXPECT_%s' % inv_replacement
+ _CHECK_REPLACEMENT['ASSERT_FALSE'][op] = 'ASSERT_%s' % inv_replacement
+ _CHECK_REPLACEMENT['EXPECT_FALSE_M'][op] = 'EXPECT_%s_M' % inv_replacement
+ _CHECK_REPLACEMENT['ASSERT_FALSE_M'][op] = 'ASSERT_%s_M' % inv_replacement
+
+# Alternative tokens and their replacements. For full list, see section 2.5
+# Alternative tokens [lex.digraph] in the C++ standard.
+#
+# Digraphs (such as '%:') are not included here since it's a mess to
+# match those on a word boundary.
+_ALT_TOKEN_REPLACEMENT = {
+ 'and': '&&',
+ 'bitor': '|',
+ 'or': '||',
+ 'xor': '^',
+ 'compl': '~',
+ 'bitand': '&',
+ 'and_eq': '&=',
+ 'or_eq': '|=',
+ 'xor_eq': '^=',
+ 'not': '!',
+ 'not_eq': '!='
+ }
+
+# Compile regular expression that matches all the above keywords. The "[ =()]"
+# bit is meant to avoid matching these keywords outside of boolean expressions.
+#
+# False positives include C-style multi-line comments (http://go/nsiut )
+# and multi-line strings (http://go/beujw ), but those have always been
+# troublesome for cpplint.
+_ALT_TOKEN_REPLACEMENT_PATTERN = re.compile(
+ r'[ =()](' + ('|'.join(_ALT_TOKEN_REPLACEMENT.keys())) + r')(?=[ (]|$)')
+
+
+# These constants define types of headers for use with
+# _IncludeState.CheckNextIncludeOrder().
+_C_SYS_HEADER = 1
+_CPP_SYS_HEADER = 2
+_LIKELY_MY_HEADER = 3
+_POSSIBLE_MY_HEADER = 4
+_OTHER_HEADER = 5
+
+# These constants define the current inline assembly state
+_NO_ASM = 0 # Outside of inline assembly block
+_INSIDE_ASM = 1 # Inside inline assembly block
+_END_ASM = 2 # Last line of inline assembly block
+_BLOCK_ASM = 3 # The whole block is an inline assembly block
+
+# Match start of assembly blocks
+_MATCH_ASM = re.compile(r'^\s*(?:asm|_asm|__asm|__asm__)'
+ r'(?:\s+(volatile|__volatile__))?'
+ r'\s*[{(]')
+
+
+_regexp_compile_cache = {}
+
+# Finds occurrences of NOLINT or NOLINT(...).
+_RE_SUPPRESSION = re.compile(r'\bNOLINT\b(\([^)]*\))?')
+
+# {str, set(int)}: a map from error categories to sets of linenumbers
+# on which those errors are expected and should be suppressed.
+_error_suppressions = {}
+
+# The root directory used for deriving header guard CPP variable.
+# This is set by --root flag.
+_root = None
+
+def ParseNolintSuppressions(filename, raw_line, linenum, error):
+ """Updates the global list of error-suppressions.
+
+ Parses any NOLINT comments on the current line, updating the global
+ error_suppressions store. Reports an error if the NOLINT comment
+ was malformed.
+
+ Args:
+ filename: str, the name of the input file.
+ raw_line: str, the line of input text, with comments.
+ linenum: int, the number of the current line.
+ error: function, an error handler.
+ """
+ # FIXME(adonovan): "NOLINT(" is misparsed as NOLINT(*).
+ matched = _RE_SUPPRESSION.search(raw_line)
+ if matched:
+ category = matched.group(1)
+ if category in (None, '(*)'): # => "suppress all"
+ _error_suppressions.setdefault(None, set()).add(linenum)
+ else:
+ if category.startswith('(') and category.endswith(')'):
+ category = category[1:-1]
+ if category in _ERROR_CATEGORIES:
+ _error_suppressions.setdefault(category, set()).add(linenum)
+ else:
+ error(filename, linenum, 'readability/nolint', 5,
+ 'Unknown NOLINT error category: %s' % category)
+
+
+def ResetNolintSuppressions():
+ "Resets the set of NOLINT suppressions to empty."
+ _error_suppressions.clear()
+
+
+def IsErrorSuppressedByNolint(category, linenum):
+ """Returns true if the specified error category is suppressed on this line.
+
+ Consults the global error_suppressions map populated by
+ ParseNolintSuppressions/ResetNolintSuppressions.
+
+ Args:
+ category: str, the category of the error.
+ linenum: int, the current line number.
+ Returns:
+ bool, True iff the error should be suppressed due to a NOLINT comment.
+ """
+ return (linenum in _error_suppressions.get(category, set()) or
+ linenum in _error_suppressions.get(None, set()))
+
+def Match(pattern, s):
+ """Matches the string with the pattern, caching the compiled regexp."""
+ # The regexp compilation caching is inlined in both Match and Search for
+ # performance reasons; factoring it out into a separate function turns out
+ # to be noticeably expensive.
+ if not pattern in _regexp_compile_cache:
+ _regexp_compile_cache[pattern] = sre_compile.compile(pattern)
+ return _regexp_compile_cache[pattern].match(s)
+
+
+def Search(pattern, s):
+ """Searches the string for the pattern, caching the compiled regexp."""
+ if not pattern in _regexp_compile_cache:
+ _regexp_compile_cache[pattern] = sre_compile.compile(pattern)
+ return _regexp_compile_cache[pattern].search(s)
+
+
+class _IncludeState(dict):
+ """Tracks line numbers for includes, and the order in which includes appear.
+
+ As a dict, an _IncludeState object serves as a mapping between include
+ filename and line number on which that file was included.
+
+ Call CheckNextIncludeOrder() once for each header in the file, passing
+ in the type constants defined above. Calls in an illegal order will
+ raise an _IncludeError with an appropriate error message.
+
+ """
+ # self._section will move monotonically through this set. If it ever
+ # needs to move backwards, CheckNextIncludeOrder will raise an error.
+ _INITIAL_SECTION = 0
+ _MY_H_SECTION = 1
+ _C_SECTION = 2
+ _CPP_SECTION = 3
+ _OTHER_H_SECTION = 4
+
+ _TYPE_NAMES = {
+ _C_SYS_HEADER: 'C system header',
+ _CPP_SYS_HEADER: 'C++ system header',
+ _LIKELY_MY_HEADER: 'header this file implements',
+ _POSSIBLE_MY_HEADER: 'header this file may implement',
+ _OTHER_HEADER: 'other header',
+ }
+ _SECTION_NAMES = {
+ _INITIAL_SECTION: "... nothing. (This can't be an error.)",
+ _MY_H_SECTION: 'a header this file implements',
+ _C_SECTION: 'C system header',
+ _CPP_SECTION: 'C++ system header',
+ _OTHER_H_SECTION: 'other header',
+ }
+
+ def __init__(self):
+ dict.__init__(self)
+ # The name of the current section.
+ self._section = self._INITIAL_SECTION
+ # The path of last found header.
+ self._last_header = ''
+
+ def CanonicalizeAlphabeticalOrder(self, header_path):
+ """Returns a path canonicalized for alphabetical comparison.
+
+ - replaces "-" with "_" so they both cmp the same.
+ - removes '-inl' since we don't require them to be after the main header.
+ - lowercase everything, just in case.
+
+ Args:
+ header_path: Path to be canonicalized.
+
+ Returns:
+ Canonicalized path.
+ """
+ return header_path.replace('-inl.h', '.h').replace('-', '_').lower()
+
+ def IsInAlphabeticalOrder(self, header_path):
+ """Check if a header is in alphabetical order with the previous header.
+
+ Args:
+ header_path: Header to be checked.
+
+ Returns:
+ Returns true if the header is in alphabetical order.
+ """
+ canonical_header = self.CanonicalizeAlphabeticalOrder(header_path)
+ if self._last_header > canonical_header:
+ return False
+ self._last_header = canonical_header
+ return True
+
+ def CheckNextIncludeOrder(self, header_type):
+ """Returns a non-empty error message if the next header is out of order.
+
+ This function also updates the internal state to be ready to check
+ the next include.
+
+ Args:
+ header_type: One of the _XXX_HEADER constants defined above.
+
+ Returns:
+ The empty string if the header is in the right order, or an
+ error message describing what's wrong.
+
+ """
+ error_message = ('Found %s after %s' %
+ (self._TYPE_NAMES[header_type],
+ self._SECTION_NAMES[self._section]))
+
+ last_section = self._section
+
+ if header_type == _C_SYS_HEADER:
+ if self._section <= self._C_SECTION:
+ self._section = self._C_SECTION
+ else:
+ self._last_header = ''
+ return error_message
+ elif header_type == _CPP_SYS_HEADER:
+ if self._section <= self._CPP_SECTION:
+ self._section = self._CPP_SECTION
+ else:
+ self._last_header = ''
+ return error_message
+ elif header_type == _LIKELY_MY_HEADER:
+ if self._section <= self._MY_H_SECTION:
+ self._section = self._MY_H_SECTION
+ else:
+ self._section = self._OTHER_H_SECTION
+ elif header_type == _POSSIBLE_MY_HEADER:
+ if self._section <= self._MY_H_SECTION:
+ self._section = self._MY_H_SECTION
+ else:
+ # This will always be the fallback because we're not sure
+ # enough that the header is associated with this file.
+ self._section = self._OTHER_H_SECTION
+ else:
+ assert header_type == _OTHER_HEADER
+ self._section = self._OTHER_H_SECTION
+
+ if last_section != self._section:
+ self._last_header = ''
+
+ return ''
+
+
+class _CppLintState(object):
+ """Maintains module-wide state.."""
+
+ def __init__(self):
+ self.verbose_level = 1 # global setting.
+ self.error_count = 0 # global count of reported errors
+ # filters to apply when emitting error messages
+ self.filters = _DEFAULT_FILTERS[:]
+ self.counting = 'total' # In what way are we counting errors?
+ self.errors_by_category = {} # string to int dict storing error counts
+
+ # output format:
+ # "emacs" - format that emacs can parse (default)
+ # "vs7" - format that Microsoft Visual Studio 7 can parse
+ self.output_format = 'emacs'
+
+ def SetOutputFormat(self, output_format):
+ """Sets the output format for errors."""
+ self.output_format = output_format
+
+ def SetVerboseLevel(self, level):
+ """Sets the module's verbosity, and returns the previous setting."""
+ last_verbose_level = self.verbose_level
+ self.verbose_level = level
+ return last_verbose_level
+
+ def SetCountingStyle(self, counting_style):
+ """Sets the module's counting options."""
+ self.counting = counting_style
+
+ def SetFilters(self, filters):
+ """Sets the error-message filters.
+
+ These filters are applied when deciding whether to emit a given
+ error message.
+
+ Args:
+ filters: A string of comma-separated filters (eg "+whitespace/indent").
+ Each filter should start with + or -; else we die.
+
+ Raises:
+ ValueError: The comma-separated filters did not all start with '+' or '-'.
+ E.g. "-,+whitespace,-whitespace/indent,whitespace/badfilter"
+ """
+ # Default filters always have less priority than the flag ones.
+ self.filters = _DEFAULT_FILTERS[:]
+ for filt in filters.split(','):
+ clean_filt = filt.strip()
+ if clean_filt:
+ self.filters.append(clean_filt)
+ for filt in self.filters:
+ if not (filt.startswith('+') or filt.startswith('-')):
+ raise ValueError('Every filter in --filters must start with + or -'
+ ' (%s does not)' % filt)
+
+ def ResetErrorCounts(self):
+ """Sets the module's error statistic back to zero."""
+ self.error_count = 0
+ self.errors_by_category = {}
+
+ def IncrementErrorCount(self, category):
+ """Bumps the module's error statistic."""
+ self.error_count += 1
+ if self.counting in ('toplevel', 'detailed'):
+ if self.counting != 'detailed':
+ category = category.split('/')[0]
+ if category not in self.errors_by_category:
+ self.errors_by_category[category] = 0
+ self.errors_by_category[category] += 1
+
+ def PrintErrorCounts(self):
+ """Print a summary of errors by category, and the total."""
+ for category, count in self.errors_by_category.iteritems():
+ sys.stderr.write('Category \'%s\' errors found: %d\n' %
+ (category, count))
+ sys.stderr.write('Total errors found: %d\n' % self.error_count)
+
+_cpplint_state = _CppLintState()
+
+
+def _OutputFormat():
+ """Gets the module's output format."""
+ return _cpplint_state.output_format
+
+
+def _SetOutputFormat(output_format):
+ """Sets the module's output format."""
+ _cpplint_state.SetOutputFormat(output_format)
+
+
+def _VerboseLevel():
+ """Returns the module's verbosity setting."""
+ return _cpplint_state.verbose_level
+
+
+def _SetVerboseLevel(level):
+ """Sets the module's verbosity, and returns the previous setting."""
+ return _cpplint_state.SetVerboseLevel(level)
+
+
+def _SetCountingStyle(level):
+ """Sets the module's counting options."""
+ _cpplint_state.SetCountingStyle(level)
+
+
+def _Filters():
+ """Returns the module's list of output filters, as a list."""
+ return _cpplint_state.filters
+
+
+def _SetFilters(filters):
+ """Sets the module's error-message filters.
+
+ These filters are applied when deciding whether to emit a given
+ error message.
+
+ Args:
+ filters: A string of comma-separated filters (eg "whitespace/indent").
+ Each filter should start with + or -; else we die.
+ """
+ _cpplint_state.SetFilters(filters)
+
+
+class _FunctionState(object):
+ """Tracks current function name and the number of lines in its body."""
+
+ _NORMAL_TRIGGER = 250 # for --v=0, 500 for --v=1, etc.
+ _TEST_TRIGGER = 400 # about 50% more than _NORMAL_TRIGGER.
+
+ def __init__(self):
+ self.in_a_function = False
+ self.lines_in_function = 0
+ self.current_function = ''
+
+ def Begin(self, function_name):
+ """Start analyzing function body.
+
+ Args:
+ function_name: The name of the function being tracked.
+ """
+ self.in_a_function = True
+ self.lines_in_function = 0
+ self.current_function = function_name
+
+ def Count(self):
+ """Count line in current function body."""
+ if self.in_a_function:
+ self.lines_in_function += 1
+
+ def Check(self, error, filename, linenum):
+ """Report if too many lines in function body.
+
+ Args:
+ error: The function to call with any errors found.
+ filename: The name of the current file.
+ linenum: The number of the line to check.
+ """
+ if Match(r'T(EST|est)', self.current_function):
+ base_trigger = self._TEST_TRIGGER
+ else:
+ base_trigger = self._NORMAL_TRIGGER
+ trigger = base_trigger * 2**_VerboseLevel()
+
+ if self.lines_in_function > trigger:
+ error_level = int(math.log(self.lines_in_function / base_trigger, 2))
+ # 50 => 0, 100 => 1, 200 => 2, 400 => 3, 800 => 4, 1600 => 5, ...
+ if error_level > 5:
+ error_level = 5
+ error(filename, linenum, 'readability/fn_size', error_level,
+ 'Small and focused functions are preferred:'
+ ' %s has %d non-comment lines'
+ ' (error triggered by exceeding %d lines).' % (
+ self.current_function, self.lines_in_function, trigger))
+
+ def End(self):
+ """Stop analyzing function body."""
+ self.in_a_function = False
+
+
+class _IncludeError(Exception):
+ """Indicates a problem with the include order in a file."""
+ pass
+
+
+class FileInfo:
+ """Provides utility functions for filenames.
+
+ FileInfo provides easy access to the components of a file's path
+ relative to the project root.
+ """
+
+ def __init__(self, filename):
+ self._filename = filename
+
+ def FullName(self):
+ """Make Windows paths like Unix."""
+ return os.path.abspath(self._filename).replace('\\', '/')
+
+ def RepositoryName(self):
+ """FullName after removing the local path to the repository.
+
+ If we have a real absolute path name here we can try to do something smart:
+ detecting the root of the checkout and truncating /path/to/checkout from
+ the name so that we get header guards that don't include things like
+ "C:\Documents and Settings\..." or "/home/username/..." in them and thus
+ people on different computers who have checked the source out to different
+ locations won't see bogus errors.
+ """
+ fullname = self.FullName()
+
+ if os.path.exists(fullname):
+ project_dir = os.path.dirname(fullname)
+
+ if os.path.exists(os.path.join(project_dir, ".svn")):
+ # If there's a .svn file in the current directory, we recursively look
+ # up the directory tree for the top of the SVN checkout
+ root_dir = project_dir
+ one_up_dir = os.path.dirname(root_dir)
+ while os.path.exists(os.path.join(one_up_dir, ".svn")):
+ root_dir = os.path.dirname(root_dir)
+ one_up_dir = os.path.dirname(one_up_dir)
+
+ prefix = os.path.commonprefix([root_dir, project_dir])
+ return fullname[len(prefix) + 1:]
+
+ # Not SVN <= 1.6? Try to find a git, hg, or svn top level directory by
+ # searching up from the current path.
+ root_dir = os.path.dirname(fullname)
+ while (root_dir != os.path.dirname(root_dir) and
+ not os.path.exists(os.path.join(root_dir, ".git")) and
+ not os.path.exists(os.path.join(root_dir, ".hg")) and
+ not os.path.exists(os.path.join(root_dir, ".svn"))):
+ root_dir = os.path.dirname(root_dir)
+
+ if (os.path.exists(os.path.join(root_dir, ".git")) or
+ os.path.exists(os.path.join(root_dir, ".hg")) or
+ os.path.exists(os.path.join(root_dir, ".svn"))):
+ prefix = os.path.commonprefix([root_dir, project_dir])
+ return fullname[len(prefix) + 1:]
+
+ # Don't know what to do; header guard warnings may be wrong...
+ return fullname
+
+ def Split(self):
+ """Splits the file into the directory, basename, and extension.
+
+ For 'chrome/browser/browser.cc', Split() would
+ return ('chrome/browser', 'browser', '.cc')
+
+ Returns:
+ A tuple of (directory, basename, extension).
+ """
+
+ googlename = self.RepositoryName()
+ project, rest = os.path.split(googlename)
+ return (project,) + os.path.splitext(rest)
+
+ def BaseName(self):
+ """File base name - text after the final slash, before the final period."""
+ return self.Split()[1]
+
+ def Extension(self):
+ """File extension - text following the final period."""
+ return self.Split()[2]
+
+ def NoExtension(self):
+ """File has no source file extension."""
+ return '/'.join(self.Split()[0:2])
+
+ def IsSource(self):
+ """File has a source file extension."""
+ return self.Extension()[1:] in ('c', 'cc', 'cpp', 'cxx')
+
+
+def _ShouldPrintError(category, confidence, linenum):
+ """If confidence >= verbose, category passes filter and is not suppressed."""
+
+ # There are three ways we might decide not to print an error message:
+ # a "NOLINT(category)" comment appears in the source,
+ # the verbosity level isn't high enough, or the filters filter it out.
+ if IsErrorSuppressedByNolint(category, linenum):
+ return False
+ if confidence < _cpplint_state.verbose_level:
+ return False
+
+ is_filtered = False
+ for one_filter in _Filters():
+ if one_filter.startswith('-'):
+ if category.startswith(one_filter[1:]):
+ is_filtered = True
+ elif one_filter.startswith('+'):
+ if category.startswith(one_filter[1:]):
+ is_filtered = False
+ else:
+ assert False # should have been checked for in SetFilter.
+ if is_filtered:
+ return False
+
+ return True
+
+
+def Error(filename, linenum, category, confidence, message):
+ """Logs the fact we've found a lint error.
+
+ We log where the error was found, and also our confidence in the error,
+ that is, how certain we are this is a legitimate style regression, and
+ not a misidentification or a use that's sometimes justified.
+
+ False positives can be suppressed by the use of
+ "cpplint(category)" comments on the offending line. These are
+ parsed into _error_suppressions.
+
+ Args:
+ filename: The name of the file containing the error.
+ linenum: The number of the line containing the error.
+ category: A string used to describe the "category" this bug
+ falls under: "whitespace", say, or "runtime". Categories
+ may have a hierarchy separated by slashes: "whitespace/indent".
+ confidence: A number from 1-5 representing a confidence score for
+ the error, with 5 meaning that we are certain of the problem,
+ and 1 meaning that it could be a legitimate construct.
+ message: The error message.
+ """
+ if _ShouldPrintError(category, confidence, linenum):
+ _cpplint_state.IncrementErrorCount(category)
+ if _cpplint_state.output_format == 'vs7':
+ sys.stderr.write('%s(%s): %s [%s] [%d]\n' % (
+ filename, linenum, message, category, confidence))
+ elif _cpplint_state.output_format == 'eclipse':
+ sys.stderr.write('%s:%s: warning: %s [%s] [%d]\n' % (
+ filename, linenum, message, category, confidence))
+ else:
+ sys.stderr.write('%s:%s: %s [%s] [%d]\n' % (
+ filename, linenum, message, category, confidence))
+
+
+# Matches standard C++ escape esequences per 2.13.2.3 of the C++ standard.
+_RE_PATTERN_CLEANSE_LINE_ESCAPES = re.compile(
+ r'\\([abfnrtv?"\\\']|\d+|x[0-9a-fA-F]+)')
+# Matches strings. Escape codes should already be removed by ESCAPES.
+_RE_PATTERN_CLEANSE_LINE_DOUBLE_QUOTES = re.compile(r'"[^"]*"')
+# Matches characters. Escape codes should already be removed by ESCAPES.
+_RE_PATTERN_CLEANSE_LINE_SINGLE_QUOTES = re.compile(r"'.'")
+# Matches multi-line C++ comments.
+# This RE is a little bit more complicated than one might expect, because we
+# have to take care of space removals tools so we can handle comments inside
+# statements better.
+# The current rule is: We only clear spaces from both sides when we're at the
+# end of the line. Otherwise, we try to remove spaces from the right side,
+# if this doesn't work we try on left side but only if there's a non-character
+# on the right.
+_RE_PATTERN_CLEANSE_LINE_C_COMMENTS = re.compile(
+ r"""(\s*/\*.*\*/\s*$|
+ /\*.*\*/\s+|
+ \s+/\*.*\*/(?=\W)|
+ /\*.*\*/)""", re.VERBOSE)
+
+
+def IsCppString(line):
+ """Does line terminate so, that the next symbol is in string constant.
+
+ This function does not consider single-line nor multi-line comments.
+
+ Args:
+ line: is a partial line of code starting from the 0..n.
+
+ Returns:
+ True, if next character appended to 'line' is inside a
+ string constant.
+ """
+
+ line = line.replace(r'\\', 'XX') # after this, \\" does not match to \"
+ return ((line.count('"') - line.count(r'\"') - line.count("'\"'")) & 1) == 1
+
+
+def FindNextMultiLineCommentStart(lines, lineix):
+ """Find the beginning marker for a multiline comment."""
+ while lineix < len(lines):
+ if lines[lineix].strip().startswith('/*'):
+ # Only return this marker if the comment goes beyond this line
+ if lines[lineix].strip().find('*/', 2) < 0:
+ return lineix
+ lineix += 1
+ return len(lines)
+
+
+def FindNextMultiLineCommentEnd(lines, lineix):
+ """We are inside a comment, find the end marker."""
+ while lineix < len(lines):
+ if lines[lineix].strip().endswith('*/'):
+ return lineix
+ lineix += 1
+ return len(lines)
+
+
+def RemoveMultiLineCommentsFromRange(lines, begin, end):
+ """Clears a range of lines for multi-line comments."""
+ # Having // dummy comments makes the lines non-empty, so we will not get
+ # unnecessary blank line warnings later in the code.
+ for i in range(begin, end):
+ lines[i] = '// dummy'
+
+
+def RemoveMultiLineComments(filename, lines, error):
+ """Removes multiline (c-style) comments from lines."""
+ lineix = 0
+ while lineix < len(lines):
+ lineix_begin = FindNextMultiLineCommentStart(lines, lineix)
+ if lineix_begin >= len(lines):
+ return
+ lineix_end = FindNextMultiLineCommentEnd(lines, lineix_begin)
+ if lineix_end >= len(lines):
+ error(filename, lineix_begin + 1, 'readability/multiline_comment', 5,
+ 'Could not find end of multi-line comment')
+ return
+ RemoveMultiLineCommentsFromRange(lines, lineix_begin, lineix_end + 1)
+ lineix = lineix_end + 1
+
+
+def CleanseComments(line):
+ """Removes //-comments and single-line C-style /* */ comments.
+
+ Args:
+ line: A line of C++ source.
+
+ Returns:
+ The line with single-line comments removed.
+ """
+ commentpos = line.find('//')
+ if commentpos != -1 and not IsCppString(line[:commentpos]):
+ line = line[:commentpos].rstrip()
+ # get rid of /* ... */
+ return _RE_PATTERN_CLEANSE_LINE_C_COMMENTS.sub('', line)
+
+
+class CleansedLines(object):
+ """Holds 3 copies of all lines with different preprocessing applied to them.
+
+ 1) elided member contains lines without strings and comments,
+ 2) lines member contains lines without comments, and
+ 3) raw_lines member contains all the lines without processing.
+ All these three members are of <type 'list'>, and of the same length.
+ """
+
+ def __init__(self, lines):
+ self.elided = []
+ self.lines = []
+ self.raw_lines = lines
+ self.num_lines = len(lines)
+ for linenum in range(len(lines)):
+ self.lines.append(CleanseComments(lines[linenum]))
+ elided = self._CollapseStrings(lines[linenum])
+ self.elided.append(CleanseComments(elided))
+
+ def NumLines(self):
+ """Returns the number of lines represented."""
+ return self.num_lines
+
+ @staticmethod
+ def _CollapseStrings(elided):
+ """Collapses strings and chars on a line to simple "" or '' blocks.
+
+ We nix strings first so we're not fooled by text like '"http://"'
+
+ Args:
+ elided: The line being processed.
+
+ Returns:
+ The line with collapsed strings.
+ """
+ if not _RE_PATTERN_INCLUDE.match(elided):
+ # Remove escaped characters first to make quote/single quote collapsing
+ # basic. Things that look like escaped characters shouldn't occur
+ # outside of strings and chars.
+ elided = _RE_PATTERN_CLEANSE_LINE_ESCAPES.sub('', elided)
+ elided = _RE_PATTERN_CLEANSE_LINE_SINGLE_QUOTES.sub("''", elided)
+ elided = _RE_PATTERN_CLEANSE_LINE_DOUBLE_QUOTES.sub('""', elided)
+ return elided
+
+
+def FindEndOfExpressionInLine(line, startpos, depth, startchar, endchar):
+ """Find the position just after the matching endchar.
+
+ Args:
+ line: a CleansedLines line.
+ startpos: start searching at this position.
+ depth: nesting level at startpos.
+ startchar: expression opening character.
+ endchar: expression closing character.
+
+ Returns:
+ Index just after endchar.
+ """
+ for i in xrange(startpos, len(line)):
+ if line[i] == startchar:
+ depth += 1
+ elif line[i] == endchar:
+ depth -= 1
+ if depth == 0:
+ return i + 1
+ return -1
+
+
+def CloseExpression(clean_lines, linenum, pos):
+ """If input points to ( or { or [, finds the position that closes it.
+
+ If lines[linenum][pos] points to a '(' or '{' or '[', finds the
+ linenum/pos that correspond to the closing of the expression.
+
+ Args:
+ clean_lines: A CleansedLines instance containing the file.
+ linenum: The number of the line to check.
+ pos: A position on the line.
+
+ Returns:
+ A tuple (line, linenum, pos) pointer *past* the closing brace, or
+ (line, len(lines), -1) if we never find a close. Note we ignore
+ strings and comments when matching; and the line we return is the
+ 'cleansed' line at linenum.
+ """
+
+ line = clean_lines.elided[linenum]
+ startchar = line[pos]
+ if startchar not in '({[':
+ return (line, clean_lines.NumLines(), -1)
+ if startchar == '(': endchar = ')'
+ if startchar == '[': endchar = ']'
+ if startchar == '{': endchar = '}'
+
+ # Check first line
+ end_pos = FindEndOfExpressionInLine(line, pos, 0, startchar, endchar)
+ if end_pos > -1:
+ return (line, linenum, end_pos)
+ tail = line[pos:]
+ num_open = tail.count(startchar) - tail.count(endchar)
+ while linenum < clean_lines.NumLines() - 1:
+ linenum += 1
+ line = clean_lines.elided[linenum]
+ delta = line.count(startchar) - line.count(endchar)
+ if num_open + delta <= 0:
+ return (line, linenum,
+ FindEndOfExpressionInLine(line, 0, num_open, startchar, endchar))
+ num_open += delta
+
+ # Did not find endchar before end of file, give up
+ return (line, clean_lines.NumLines(), -1)
+
+def CheckForCopyright(filename, lines, error):
+ """Logs an error if no Copyright message appears at the top of the file."""
+
+ # We'll say it should occur by line 10. Don't forget there's a
+ # dummy line at the front.
+ for line in xrange(1, min(len(lines), 11)):
+ if re.search(r'Copyright', lines[line], re.I): break
+ else: # means no copyright line was found
+ error(filename, 0, 'legal/copyright', 5,
+ 'No copyright message found. '
+ 'You should have a line: "Copyright [year] <Copyright Owner>"')
+
+
+def GetHeaderGuardCPPVariable(filename):
+ """Returns the CPP variable that should be used as a header guard.
+
+ Args:
+ filename: The name of a C++ header file.
+
+ Returns:
+ The CPP variable that should be used as a header guard in the
+ named file.
+
+ """
+
+ # Restores original filename in case that cpplint is invoked from Emacs's
+ # flymake.
+ filename = re.sub(r'_flymake\.h$', '.h', filename)
+ filename = re.sub(r'/\.flymake/([^/]*)$', r'/\1', filename)
+
+ fileinfo = FileInfo(filename)
+ file_path_from_root = fileinfo.RepositoryName()
+ if _root:
+ file_path_from_root = re.sub('^' + _root + os.sep, '', file_path_from_root)
+ return re.sub(r'[-./\s]', '_', file_path_from_root).upper() + '_'
+
+
+def CheckForHeaderGuard(filename, lines, error):
+ """Checks that the file contains a header guard.
+
+ Logs an error if no #ifndef header guard is present. For other
+ headers, checks that the full pathname is used.
+
+ Args:
+ filename: The name of the C++ header file.
+ lines: An array of strings, each representing a line of the file.
+ error: The function to call with any errors found.
+ """
+
+ cppvar = GetHeaderGuardCPPVariable(filename)
+
+ ifndef = None
+ ifndef_linenum = 0
+ define = None
+ endif = None
+ endif_linenum = 0
+ for linenum, line in enumerate(lines):
+ linesplit = line.split()
+ if len(linesplit) >= 2:
+ # find the first occurrence of #ifndef and #define, save arg
+ if not ifndef and linesplit[0] == '#ifndef':
+ # set ifndef to the header guard presented on the #ifndef line.
+ ifndef = linesplit[1]
+ ifndef_linenum = linenum
+ if not define and linesplit[0] == '#define':
+ define = linesplit[1]
+ # find the last occurrence of #endif, save entire line
+ if line.startswith('#endif'):
+ endif = line
+ endif_linenum = linenum
+
+ if not ifndef:
+ error(filename, 0, 'build/header_guard', 5,
+ 'No #ifndef header guard found, suggested CPP variable is: %s' %
+ cppvar)
+ return
+
+ if not define:
+ error(filename, 0, 'build/header_guard', 5,
+ 'No #define header guard found, suggested CPP variable is: %s' %
+ cppvar)
+ return
+
+ # The guard should be PATH_FILE_H_, but we also allow PATH_FILE_H__
+ # for backward compatibility.
+ if ifndef != cppvar:
+ error_level = 0
+ if ifndef != cppvar + '_':
+ error_level = 5
+
+ ParseNolintSuppressions(filename, lines[ifndef_linenum], ifndef_linenum,
+ error)
+ error(filename, ifndef_linenum, 'build/header_guard', error_level,
+ '#ifndef header guard has wrong style, please use: %s' % cppvar)
+
+ if define != ifndef:
+ error(filename, 0, 'build/header_guard', 5,
+ '#ifndef and #define don\'t match, suggested CPP variable is: %s' %
+ cppvar)
+ return
+
+ if endif != ('#endif // %s' % cppvar):
+ error_level = 0
+ if endif != ('#endif // %s' % (cppvar + '_')):
+ error_level = 5
+
+ ParseNolintSuppressions(filename, lines[endif_linenum], endif_linenum,
+ error)
+ error(filename, endif_linenum, 'build/header_guard', error_level,
+ '#endif line should be "#endif // %s"' % cppvar)
+
+
+def CheckForUnicodeReplacementCharacters(filename, lines, error):
+ """Logs an error for each line containing Unicode replacement characters.
+
+ These indicate that either the file contained invalid UTF-8 (likely)
+ or Unicode replacement characters (which it shouldn't). Note that
+ it's possible for this to throw off line numbering if the invalid
+ UTF-8 occurred adjacent to a newline.
+
+ Args:
+ filename: The name of the current file.
+ lines: An array of strings, each representing a line of the file.
+ error: The function to call with any errors found.
+ """
+ for linenum, line in enumerate(lines):
+ if u'\ufffd' in line:
+ error(filename, linenum, 'readability/utf8', 5,
+ 'Line contains invalid UTF-8 (or Unicode replacement character).')
+
+
+def CheckForNewlineAtEOF(filename, lines, error):
+ """Logs an error if there is no newline char at the end of the file.
+
+ Args:
+ filename: The name of the current file.
+ lines: An array of strings, each representing a line of the file.
+ error: The function to call with any errors found.
+ """
+
+ # The array lines() was created by adding two newlines to the
+ # original file (go figure), then splitting on \n.
+ # To verify that the file ends in \n, we just have to make sure the
+ # last-but-two element of lines() exists and is empty.
+ if len(lines) < 3 or lines[-2]:
+ error(filename, len(lines) - 2, 'whitespace/ending_newline', 5,
+ 'Could not find a newline character at the end of the file.')
+
+
+def CheckForMultilineCommentsAndStrings(filename, clean_lines, linenum, error):
+ """Logs an error if we see /* ... */ or "..." that extend past one line.
+
+ /* ... */ comments are legit inside macros, for one line.
+ Otherwise, we prefer // comments, so it's ok to warn about the
+ other. Likewise, it's ok for strings to extend across multiple
+ lines, as long as a line continuation character (backslash)
+ terminates each line. Although not currently prohibited by the C++
+ style guide, it's ugly and unnecessary. We don't do well with either
+ in this lint program, so we warn about both.
+
+ Args:
+ filename: The name of the current file.
+ clean_lines: A CleansedLines instance containing the file.
+ linenum: The number of the line to check.
+ error: The function to call with any errors found.
+ """
+ line = clean_lines.elided[linenum]
+
+ # Remove all \\ (escaped backslashes) from the line. They are OK, and the
+ # second (escaped) slash may trigger later \" detection erroneously.
+ line = line.replace('\\\\', '')
+
+ if line.count('/*') > line.count('*/'):
+ error(filename, linenum, 'readability/multiline_comment', 5,
+ 'Complex multi-line /*...*/-style comment found. '
+ 'Lint may give bogus warnings. '
+ 'Consider replacing these with //-style comments, '
+ 'with #if 0...#endif, '
+ 'or with more clearly structured multi-line comments.')
+
+ if (line.count('"') - line.count('\\"')) % 2:
+ error(filename, linenum, 'readability/multiline_string', 5,
+ 'Multi-line string ("...") found. This lint script doesn\'t '
+ 'do well with such strings, and may give bogus warnings. They\'re '
+ 'ugly and unnecessary, and you should use concatenation instead".')
+
+
+threading_list = (
+ ('asctime(', 'asctime_r('),
+ ('ctime(', 'ctime_r('),
+ ('getgrgid(', 'getgrgid_r('),
+ ('getgrnam(', 'getgrnam_r('),
+ ('getlogin(', 'getlogin_r('),
+ ('getpwnam(', 'getpwnam_r('),
+ ('getpwuid(', 'getpwuid_r('),
+ ('gmtime(', 'gmtime_r('),
+ ('localtime(', 'localtime_r('),
+ ('rand(', 'rand_r('),
+ ('readdir(', 'readdir_r('),
+ ('strtok(', 'strtok_r('),
+ ('ttyname(', 'ttyname_r('),
+ )
+
+
+def CheckPosixThreading(filename, clean_lines, linenum, error):
+ """Checks for calls to thread-unsafe functions.
+
+ Much code has been originally written without consideration of
+ multi-threading. Also, engineers are relying on their old experience;
+ they have learned posix before threading extensions were added. These
+ tests guide the engineers to use thread-safe functions (when using
+ posix directly).
+
+ Args:
+ filename: The name of the current file.
+ clean_lines: A CleansedLines instance containing the file.
+ linenum: The number of the line to check.
+ error: The function to call with any errors found.
+ """
+ line = clean_lines.elided[linenum]
+ for single_thread_function, multithread_safe_function in threading_list:
+ ix = line.find(single_thread_function)
+ # Comparisons made explicit for clarity -- pylint: disable-msg=C6403
+ if ix >= 0 and (ix == 0 or (not line[ix - 1].isalnum() and
+ line[ix - 1] not in ('_', '.', '>'))):
+ error(filename, linenum, 'runtime/threadsafe_fn', 2,
+ 'Consider using ' + multithread_safe_function +
+ '...) instead of ' + single_thread_function +
+ '...) for improved thread safety.')
+
+
+# Matches invalid increment: *count++, which moves pointer instead of
+# incrementing a value.
+_RE_PATTERN_INVALID_INCREMENT = re.compile(
+ r'^\s*\*\w+(\+\+|--);')
+
+
+def CheckInvalidIncrement(filename, clean_lines, linenum, error):
+ """Checks for invalid increment *count++.
+
+ For example following function:
+ void increment_counter(int* count) {
+ *count++;
+ }
+ is invalid, because it effectively does count++, moving pointer, and should
+ be replaced with ++*count, (*count)++ or *count += 1.
+
+ Args:
+ filename: The name of the current file.
+ clean_lines: A CleansedLines instance containing the file.
+ linenum: The number of the line to check.
+ error: The function to call with any errors found.
+ """
+ line = clean_lines.elided[linenum]
+ if _RE_PATTERN_INVALID_INCREMENT.match(line):
+ error(filename, linenum, 'runtime/invalid_increment', 5,
+ 'Changing pointer instead of value (or unused value of operator*).')
+
+
+class _BlockInfo(object):
+ """Stores information about a generic block of code."""
+
+ def __init__(self, seen_open_brace):
+ self.seen_open_brace = seen_open_brace
+ self.open_parentheses = 0
+ self.inline_asm = _NO_ASM
+
+ def CheckBegin(self, filename, clean_lines, linenum, error):
+ """Run checks that applies to text up to the opening brace.
+
+ This is mostly for checking the text after the class identifier
+ and the "{", usually where the base class is specified. For other
+ blocks, there isn't much to check, so we always pass.
+
+ Args:
+ filename: The name of the current file.
+ clean_lines: A CleansedLines instance containing the file.
+ linenum: The number of the line to check.
+ error: The function to call with any errors found.
+ """
+ pass
+
+ def CheckEnd(self, filename, clean_lines, linenum, error):
+ """Run checks that applies to text after the closing brace.
+
+ This is mostly used for checking end of namespace comments.
+
+ Args:
+ filename: The name of the current file.
+ clean_lines: A CleansedLines instance containing the file.
+ linenum: The number of the line to check.
+ error: The function to call with any errors found.
+ """
+ pass
+
+
+class _ClassInfo(_BlockInfo):
+ """Stores information about a class."""
+
+ def __init__(self, name, class_or_struct, clean_lines, linenum):
+ _BlockInfo.__init__(self, False)
+ self.name = name
+ self.starting_linenum = linenum
+ self.is_derived = False
+ if class_or_struct == 'struct':
+ self.access = 'public'
+ else:
+ self.access = 'private'
+
+ # Try to find the end of the class. This will be confused by things like:
+ # class A {
+ # } *x = { ...
+ #
+ # But it's still good enough for CheckSectionSpacing.
+ self.last_line = 0
+ depth = 0
+ for i in range(linenum, clean_lines.NumLines()):
+ line = clean_lines.elided[i]
+ depth += line.count('{') - line.count('}')
+ if not depth:
+ self.last_line = i
+ break
+
+ def CheckBegin(self, filename, clean_lines, linenum, error):
+ # Look for a bare ':'
+ if Search('(^|[^:]):($|[^:])', clean_lines.elided[linenum]):
+ self.is_derived = True
+
+
+class _NamespaceInfo(_BlockInfo):
+ """Stores information about a namespace."""
+
+ def __init__(self, name, linenum):
+ _BlockInfo.__init__(self, False)
+ self.name = name or ''
+ self.starting_linenum = linenum
+
+ def CheckEnd(self, filename, clean_lines, linenum, error):
+ """Check end of namespace comments."""
+ line = clean_lines.raw_lines[linenum]
+
+ # Check how many lines is enclosed in this namespace. Don't issue
+ # warning for missing namespace comments if there aren't enough
+ # lines. However, do apply checks if there is already an end of
+ # namespace comment and it's incorrect.
+ #
+ # TODO(unknown): We always want to check end of namespace comments
+ # if a namespace is large, but sometimes we also want to apply the
+ # check if a short namespace contained nontrivial things (something
+ # other than forward declarations). There is currently no logic on
+ # deciding what these nontrivial things are, so this check is
+ # triggered by namespace size only, which works most of the time.
+ if (linenum - self.starting_linenum < 10
+ and not Match(r'};*\s*(//|/\*).*\bnamespace\b', line)):
+ return
+
+ # Look for matching comment at end of namespace.
+ #
+ # Note that we accept C style "/* */" comments for terminating
+ # namespaces, so that code that terminate namespaces inside
+ # preprocessor macros can be cpplint clean. Example: http://go/nxpiz
+ #
+ # We also accept stuff like "// end of namespace <name>." with the
+ # period at the end.
+ #
+ # Besides these, we don't accept anything else, otherwise we might
+ # get false negatives when existing comment is a substring of the
+ # expected namespace. Example: http://go/ldkdc, http://cl/23548205
+ if self.name:
+ # Named namespace
+ if not Match((r'};*\s*(//|/\*).*\bnamespace\s+' + re.escape(self.name) +
+ r'[\*/\.\\\s]*$'),
+ line):
+ error(filename, linenum, 'readability/namespace', 5,
+ 'Namespace should be terminated with "// namespace %s"' %
+ self.name)
+ else:
+ # Anonymous namespace
+ if not Match(r'};*\s*(//|/\*).*\bnamespace[\*/\.\\\s]*$', line):
+ error(filename, linenum, 'readability/namespace', 5,
+ 'Namespace should be terminated with "// namespace"')
+
+
+class _PreprocessorInfo(object):
+ """Stores checkpoints of nesting stacks when #if/#else is seen."""
+
+ def __init__(self, stack_before_if):
+ # The entire nesting stack before #if
+ self.stack_before_if = stack_before_if
+
+ # The entire nesting stack up to #else
+ self.stack_before_else = []
+
+ # Whether we have already seen #else or #elif
+ self.seen_else = False
+
+
+class _NestingState(object):
+ """Holds states related to parsing braces."""
+
+ def __init__(self):
+ # Stack for tracking all braces. An object is pushed whenever we
+ # see a "{", and popped when we see a "}". Only 3 types of
+ # objects are possible:
+ # - _ClassInfo: a class or struct.
+ # - _NamespaceInfo: a namespace.
+ # - _BlockInfo: some other type of block.
+ self.stack = []
+
+ # Stack of _PreprocessorInfo objects.
+ self.pp_stack = []
+
+ def SeenOpenBrace(self):
+ """Check if we have seen the opening brace for the innermost block.
+
+ Returns:
+ True if we have seen the opening brace, False if the innermost
+ block is still expecting an opening brace.
+ """
+ return (not self.stack) or self.stack[-1].seen_open_brace
+
+ def InNamespaceBody(self):
+ """Check if we are currently one level inside a namespace body.
+
+ Returns:
+ True if top of the stack is a namespace block, False otherwise.
+ """
+ return self.stack and isinstance(self.stack[-1], _NamespaceInfo)
+
+ def UpdatePreprocessor(self, line):
+ """Update preprocessor stack.
+
+ We need to handle preprocessors due to classes like this:
+ #ifdef SWIG
+ struct ResultDetailsPageElementExtensionPoint {
+ #else
+ struct ResultDetailsPageElementExtensionPoint : public Extension {
+ #endif
+ (see http://go/qwddn for original example)
+
+ We make the following assumptions (good enough for most files):
+ - Preprocessor condition evaluates to true from #if up to first
+ #else/#elif/#endif.
+
+ - Preprocessor condition evaluates to false from #else/#elif up
+ to #endif. We still perform lint checks on these lines, but
+ these do not affect nesting stack.
+
+ Args:
+ line: current line to check.
+ """
+ if Match(r'^\s*#\s*(if|ifdef|ifndef)\b', line):
+ # Beginning of #if block, save the nesting stack here. The saved
+ # stack will allow us to restore the parsing state in the #else case.
+ self.pp_stack.append(_PreprocessorInfo(copy.deepcopy(self.stack)))
+ elif Match(r'^\s*#\s*(else|elif)\b', line):
+ # Beginning of #else block
+ if self.pp_stack:
+ if not self.pp_stack[-1].seen_else:
+ # This is the first #else or #elif block. Remember the
+ # whole nesting stack up to this point. This is what we
+ # keep after the #endif.
+ self.pp_stack[-1].seen_else = True
+ self.pp_stack[-1].stack_before_else = copy.deepcopy(self.stack)
+
+ # Restore the stack to how it was before the #if
+ self.stack = copy.deepcopy(self.pp_stack[-1].stack_before_if)
+ else:
+ # TODO(unknown): unexpected #else, issue warning?
+ pass
+ elif Match(r'^\s*#\s*endif\b', line):
+ # End of #if or #else blocks.
+ if self.pp_stack:
+ # If we saw an #else, we will need to restore the nesting
+ # stack to its former state before the #else, otherwise we
+ # will just continue from where we left off.
+ if self.pp_stack[-1].seen_else:
+ # Here we can just use a shallow copy since we are the last
+ # reference to it.
+ self.stack = self.pp_stack[-1].stack_before_else
+ # Drop the corresponding #if
+ self.pp_stack.pop()
+ else:
+ # TODO(unknown): unexpected #endif, issue warning?
+ pass
+
+ def Update(self, filename, clean_lines, linenum, error):
+ """Update nesting state with current line.
+
+ Args:
+ filename: The name of the current file.
+ clean_lines: A CleansedLines instance containing the file.
+ linenum: The number of the line to check.
+ error: The function to call with any errors found.
+ """
+ line = clean_lines.elided[linenum]
+
+ # Update pp_stack first
+ self.UpdatePreprocessor(line)
+
+ # Count parentheses. This is to avoid adding struct arguments to
+ # the nesting stack.
+ if self.stack:
+ inner_block = self.stack[-1]
+ depth_change = line.count('(') - line.count(')')
+ inner_block.open_parentheses += depth_change
+
+ # Also check if we are starting or ending an inline assembly block.
+ if inner_block.inline_asm in (_NO_ASM, _END_ASM):
+ if (depth_change != 0 and
+ inner_block.open_parentheses == 1 and
+ _MATCH_ASM.match(line)):
+ # Enter assembly block
+ inner_block.inline_asm = _INSIDE_ASM
+ else:
+ # Not entering assembly block. If previous line was _END_ASM,
+ # we will now shift to _NO_ASM state.
+ inner_block.inline_asm = _NO_ASM
+ elif (inner_block.inline_asm == _INSIDE_ASM and
+ inner_block.open_parentheses == 0):
+ # Exit assembly block
+ inner_block.inline_asm = _END_ASM
+
+ # Consume namespace declaration at the beginning of the line. Do
+ # this in a loop so that we catch same line declarations like this:
+ # namespace proto2 { namespace bridge { class MessageSet; } }
+ while True:
+ # Match start of namespace. The "\b\s*" below catches namespace
+ # declarations even if it weren't followed by a whitespace, this
+ # is so that we don't confuse our namespace checker. The
+ # missing spaces will be flagged by CheckSpacing.
+ namespace_decl_match = Match(r'^\s*namespace\b\s*([:\w]+)?(.*)$', line)
+ if not namespace_decl_match:
+ break
+
+ new_namespace = _NamespaceInfo(namespace_decl_match.group(1), linenum)
+ self.stack.append(new_namespace)
+
+ line = namespace_decl_match.group(2)
+ if line.find('{') != -1:
+ new_namespace.seen_open_brace = True
+ line = line[line.find('{') + 1:]
+
+ # Look for a class declaration in whatever is left of the line
+ # after parsing namespaces. The regexp accounts for decorated classes
+ # such as in:
+ # class LOCKABLE API Object {
+ # };
+ #
+ # Templates with class arguments may confuse the parser, for example:
+ # template <class T
+ # class Comparator = less<T>,
+ # class Vector = vector<T> >
+ # class HeapQueue {
+ #
+ # Because this parser has no nesting state about templates, by the
+ # time it saw "class Comparator", it may think that it's a new class.
+ # Nested templates have a similar problem:
+ # template <
+ # typename ExportedType,
+ # typename TupleType,
+ # template <typename, typename> class ImplTemplate>
+ #
+ # To avoid these cases, we ignore classes that are followed by '=' or '>'
+ class_decl_match = Match(
+ r'\s*(template\s*<[\w\s<>,:]*>\s*)?'
+ '(class|struct)\s+([A-Z_]+\s+)*(\w+(?:::\w+)*)'
+ '(([^=>]|<[^<>]*>)*)$', line)
+ if (class_decl_match and
+ (not self.stack or self.stack[-1].open_parentheses == 0)):
+ self.stack.append(_ClassInfo(
+ class_decl_match.group(4), class_decl_match.group(2),
+ clean_lines, linenum))
+ line = class_decl_match.group(5)
+
+ # If we have not yet seen the opening brace for the innermost block,
+ # run checks here.
+ if not self.SeenOpenBrace():
+ self.stack[-1].CheckBegin(filename, clean_lines, linenum, error)
+
+ # Update access control if we are inside a class/struct
+ if self.stack and isinstance(self.stack[-1], _ClassInfo):
+ access_match = Match(r'\s*(public|private|protected)\s*:', line)
+ if access_match:
+ self.stack[-1].access = access_match.group(1)
+
+ # Consume braces or semicolons from what's left of the line
+ while True:
+ # Match first brace, semicolon, or closed parenthesis.
+ matched = Match(r'^[^{;)}]*([{;)}])(.*)$', line)
+ if not matched:
+ break
+
+ token = matched.group(1)
+ if token == '{':
+ # If namespace or class hasn't seen a opening brace yet, mark
+ # namespace/class head as complete. Push a new block onto the
+ # stack otherwise.
+ if not self.SeenOpenBrace():
+ self.stack[-1].seen_open_brace = True
+ else:
+ self.stack.append(_BlockInfo(True))
+ if _MATCH_ASM.match(line):
+ self.stack[-1].inline_asm = _BLOCK_ASM
+ elif token == ';' or token == ')':
+ # If we haven't seen an opening brace yet, but we already saw
+ # a semicolon, this is probably a forward declaration. Pop
+ # the stack for these.
+ #
+ # Similarly, if we haven't seen an opening brace yet, but we
+ # already saw a closing parenthesis, then these are probably
+ # function arguments with extra "class" or "struct" keywords.
+ # Also pop these stack for these.
+ if not self.SeenOpenBrace():
+ self.stack.pop()
+ else: # token == '}'
+ # Perform end of block checks and pop the stack.
+ if self.stack:
+ self.stack[-1].CheckEnd(filename, clean_lines, linenum, error)
+ self.stack.pop()
+ line = matched.group(2)
+
+ def InnermostClass(self):
+ """Get class info on the top of the stack.
+
+ Returns:
+ A _ClassInfo object if we are inside a class, or None otherwise.
+ """
+ for i in range(len(self.stack), 0, -1):
+ classinfo = self.stack[i - 1]
+ if isinstance(classinfo, _ClassInfo):
+ return classinfo
+ return None
+
+ def CheckClassFinished(self, filename, error):
+ """Checks that all classes have been completely parsed.
+
+ Call this when all lines in a file have been processed.
+ Args:
+ filename: The name of the current file.
+ error: The function to call with any errors found.
+ """
+ # Note: This test can result in false positives if #ifdef constructs
+ # get in the way of brace matching. See the testBuildClass test in
+ # cpplint_unittest.py for an example of this.
+ for obj in self.stack:
+ if isinstance(obj, _ClassInfo):
+ error(filename, obj.starting_linenum, 'build/class', 5,
+ 'Failed to find complete declaration of class %s' %
+ obj.name)
+
+
+def CheckForNonStandardConstructs(filename, clean_lines, linenum,
+ nesting_state, error):
+ """Logs an error if we see certain non-ANSI constructs ignored by gcc-2.
+
+ Complain about several constructs which gcc-2 accepts, but which are
+ not standard C++. Warning about these in lint is one way to ease the
+ transition to new compilers.
+ - put storage class first (e.g. "static const" instead of "const static").
+ - "%lld" instead of %qd" in printf-type functions.
+ - "%1$d" is non-standard in printf-type functions.
+ - "\%" is an undefined character escape sequence.
+ - text after #endif is not allowed.
+ - invalid inner-style forward declaration.
+ - >? and <? operators, and their >?= and <?= cousins.
+
+ Additionally, check for constructor/destructor style violations and reference
+ members, as it is very convenient to do so while checking for
+ gcc-2 compliance.
+
+ Args:
+ filename: The name of the current file.
+ clean_lines: A CleansedLines instance containing the file.
+ linenum: The number of the line to check.
+ nesting_state: A _NestingState instance which maintains information about
+ the current stack of nested blocks being parsed.
+ error: A callable to which errors are reported, which takes 4 arguments:
+ filename, line number, error level, and message
+ """
+
+ # Remove comments from the line, but leave in strings for now.
+ line = clean_lines.lines[linenum]
+
+ if Search(r'printf\s*\(.*".*%[-+ ]?\d*q', line):
+ error(filename, linenum, 'runtime/printf_format', 3,
+ '%q in format strings is deprecated. Use %ll instead.')
+
+ if Search(r'printf\s*\(.*".*%\d+\$', line):
+ error(filename, linenum, 'runtime/printf_format', 2,
+ '%N$ formats are unconventional. Try rewriting to avoid them.')
+
+ # Remove escaped backslashes before looking for undefined escapes.
+ line = line.replace('\\\\', '')
+
+ if Search(r'("|\').*\\(%|\[|\(|{)', line):
+ error(filename, linenum, 'build/printf_format', 3,
+ '%, [, (, and { are undefined character escapes. Unescape them.')
+
+ # For the rest, work with both comments and strings removed.
+ line = clean_lines.elided[linenum]
+
+ if Search(r'\b(const|volatile|void|char|short|int|long'
+ r'|float|double|signed|unsigned'
+ r'|schar|u?int8|u?int16|u?int32|u?int64)'
+ r'\s+(register|static|extern|typedef)\b',
+ line):
+ error(filename, linenum, 'build/storage_class', 5,
+ 'Storage class (static, extern, typedef, etc) should be first.')
+
+ if Match(r'\s*#\s*endif\s*[^/\s]+', line):
+ error(filename, linenum, 'build/endif_comment', 5,
+ 'Uncommented text after #endif is non-standard. Use a comment.')
+
+ if Match(r'\s*class\s+(\w+\s*::\s*)+\w+\s*;', line):
+ error(filename, linenum, 'build/forward_decl', 5,
+ 'Inner-style forward declarations are invalid. Remove this line.')
+
+ if Search(r'(\w+|[+-]?\d+(\.\d*)?)\s*(<|>)\?=?\s*(\w+|[+-]?\d+)(\.\d*)?',
+ line):
+ error(filename, linenum, 'build/deprecated', 3,
+ '>? and <? (max and min) operators are non-standard and deprecated.')
+
+ if Search(r'^\s*const\s*string\s*&\s*\w+\s*;', line):
+ # TODO(unknown): Could it be expanded safely to arbitrary references,
+ # without triggering too many false positives? The first
+ # attempt triggered 5 warnings for mostly benign code in the regtest, hence
+ # the restriction.
+ # Here's the original regexp, for the reference:
+ # type_name = r'\w+((\s*::\s*\w+)|(\s*<\s*\w+?\s*>))?'
+ # r'\s*const\s*' + type_name + '\s*&\s*\w+\s*;'
+ error(filename, linenum, 'runtime/member_string_references', 2,
+ 'const string& members are dangerous. It is much better to use '
+ 'alternatives, such as pointers or simple constants.')
+
+ # Everything else in this function operates on class declarations.
+ # Return early if the top of the nesting stack is not a class, or if
+ # the class head is not completed yet.
+ classinfo = nesting_state.InnermostClass()
+ if not classinfo or not classinfo.seen_open_brace:
+ return
+
+ # The class may have been declared with namespace or classname qualifiers.
+ # The constructor and destructor will not have those qualifiers.
+ base_classname = classinfo.name.split('::')[-1]
+
+ # Look for single-argument constructors that aren't marked explicit.
+ # Technically a valid construct, but against style.
+ args = Match(r'\s+(?:inline\s+)?%s\s*\(([^,()]+)\)'
+ % re.escape(base_classname),
+ line)
+ if (args and
+ args.group(1) != 'void' and
+ not Match(r'(const\s+)?%s\s*(?:<\w+>\s*)?&' % re.escape(base_classname),
+ args.group(1).strip())):
+ error(filename, linenum, 'runtime/explicit', 5,
+ 'Single-argument constructors should be marked explicit.')
+
+
+def CheckSpacingForFunctionCall(filename, line, linenum, error):
+ """Checks for the correctness of various spacing around function calls.
+
+ Args:
+ filename: The name of the current file.
+ line: The text of the line to check.
+ linenum: The number of the line to check.
+ error: The function to call with any errors found.
+ """
+
+ # Since function calls often occur inside if/for/while/switch
+ # expressions - which have their own, more liberal conventions - we
+ # first see if we should be looking inside such an expression for a
+ # function call, to which we can apply more strict standards.
+ fncall = line # if there's no control flow construct, look at whole line
+ for pattern in (r'\bif\s*\((.*)\)\s*{',
+ r'\bfor\s*\((.*)\)\s*{',
+ r'\bwhile\s*\((.*)\)\s*[{;]',
+ r'\bswitch\s*\((.*)\)\s*{'):
+ match = Search(pattern, line)
+ if match:
+ fncall = match.group(1) # look inside the parens for function calls
+ break
+
+ # Except in if/for/while/switch, there should never be space
+ # immediately inside parens (eg "f( 3, 4 )"). We make an exception
+ # for nested parens ( (a+b) + c ). Likewise, there should never be
+ # a space before a ( when it's a function argument. I assume it's a
+ # function argument when the char before the whitespace is legal in
+ # a function name (alnum + _) and we're not starting a macro. Also ignore
+ # pointers and references to arrays and functions coz they're too tricky:
+ # we use a very simple way to recognize these:
+ # " (something)(maybe-something)" or
+ # " (something)(maybe-something," or
+ # " (something)[something]"
+ # Note that we assume the contents of [] to be short enough that
+ # they'll never need to wrap.
+ if ( # Ignore control structures.
+ not Search(r'\b(if|for|while|switch|return|delete)\b', fncall) and
+ # Ignore pointers/references to functions.
+ not Search(r' \([^)]+\)\([^)]*(\)|,$)', fncall) and
+ # Ignore pointers/references to arrays.
+ not Search(r' \([^)]+\)\[[^\]]+\]', fncall)):
+ if Search(r'\w\s*\(\s(?!\s*\\$)', fncall): # a ( used for a fn call
+ error(filename, linenum, 'whitespace/parens', 4,
+ 'Extra space after ( in function call')
+ elif Search(r'\(\s+(?!(\s*\\)|\()', fncall):
+ error(filename, linenum, 'whitespace/parens', 2,
+ 'Extra space after (')
+ if (Search(r'\w\s+\(', fncall) and
+ not Search(r'#\s*define|typedef', fncall) and
+ not Search(r'\w\s+\((\w+::)?\*\w+\)\(', fncall)):
+ error(filename, linenum, 'whitespace/parens', 4,
+ 'Extra space before ( in function call')
+ # If the ) is followed only by a newline or a { + newline, assume it's
+ # part of a control statement (if/while/etc), and don't complain
+ if Search(r'[^)]\s+\)\s*[^{\s]', fncall):
+ # If the closing parenthesis is preceded by only whitespaces,
+ # try to give a more descriptive error message.
+ if Search(r'^\s+\)', fncall):
+ error(filename, linenum, 'whitespace/parens', 2,
+ 'Closing ) should be moved to the previous line')
+ else:
+ error(filename, linenum, 'whitespace/parens', 2,
+ 'Extra space before )')
+
+
+def IsBlankLine(line):
+ """Returns true if the given line is blank.
+
+ We consider a line to be blank if the line is empty or consists of
+ only white spaces.
+
+ Args:
+ line: A line of a string.
+
+ Returns:
+ True, if the given line is blank.
+ """
+ return not line or line.isspace()
+
+
+def CheckForFunctionLengths(filename, clean_lines, linenum,
+ function_state, error):
+ """Reports for long function bodies.
+
+ For an overview why this is done, see:
+ http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Write_Short_Functions
+
+ Uses a simplistic algorithm assuming other style guidelines
+ (especially spacing) are followed.
+ Only checks unindented functions, so class members are unchecked.
+ Trivial bodies are unchecked, so constructors with huge initializer lists
+ may be missed.
+ Blank/comment lines are not counted so as to avoid encouraging the removal
+ of vertical space and comments just to get through a lint check.
+ NOLINT *on the last line of a function* disables this check.
+
+ Args:
+ filename: The name of the current file.
+ clean_lines: A CleansedLines instance containing the file.
+ linenum: The number of the line to check.
+ function_state: Current function name and lines in body so far.
+ error: The function to call with any errors found.
+ """
+ lines = clean_lines.lines
+ line = lines[linenum]
+ raw = clean_lines.raw_lines
+ raw_line = raw[linenum]
+ joined_line = ''
+
+ starting_func = False
+ regexp = r'(\w(\w|::|\*|\&|\s)*)\(' # decls * & space::name( ...
+ match_result = Match(regexp, line)
+ if match_result:
+ # If the name is all caps and underscores, figure it's a macro and
+ # ignore it, unless it's TEST or TEST_F.
+ function_name = match_result.group(1).split()[-1]
+ if function_name == 'TEST' or function_name == 'TEST_F' or (
+ not Match(r'[A-Z_]+$', function_name)):
+ starting_func = True
+
+ if starting_func:
+ body_found = False
+ for start_linenum in xrange(linenum, clean_lines.NumLines()):
+ start_line = lines[start_linenum]
+ joined_line += ' ' + start_line.lstrip()
+ if Search(r'(;|})', start_line): # Declarations and trivial functions
+ body_found = True
+ break # ... ignore
+ elif Search(r'{', start_line):
+ body_found = True
+ function = Search(r'((\w|:)*)\(', line).group(1)
+ if Match(r'TEST', function): # Handle TEST... macros
+ parameter_regexp = Search(r'(\(.*\))', joined_line)
+ if parameter_regexp: # Ignore bad syntax
+ function += parameter_regexp.group(1)
+ else:
+ function += '()'
+ function_state.Begin(function)
+ break
+ if not body_found:
+ # No body for the function (or eviden